fix(nodes): restore autocomplete widget sync after metadata insertion (#879)

__init__.py

@@ -7,6 +7,7 @@ try:  # pragma: no cover - import fallback for pytest collection
     from .py.nodes.prompt import PromptLM
     from .py.nodes.text import TextLM
     from .py.nodes.lora_stacker import LoraStackerLM
+    from .py.nodes.lora_stack_combiner import LoraStackCombinerLM
     from .py.nodes.save_image import SaveImageLM
     from .py.nodes.debug_metadata import DebugMetadataLM
     from .py.nodes.wanvideo_lora_select import WanVideoLoraSelectLM
@@ -39,6 +40,9 @@ except (
         "py.nodes.trigger_word_toggle"
     ).TriggerWordToggleLM
     LoraStackerLM = importlib.import_module("py.nodes.lora_stacker").LoraStackerLM
+    LoraStackCombinerLM = importlib.import_module(
+        "py.nodes.lora_stack_combiner"
+    ).LoraStackCombinerLM
     SaveImageLM = importlib.import_module("py.nodes.save_image").SaveImageLM
     DebugMetadataLM = importlib.import_module("py.nodes.debug_metadata").DebugMetadataLM
     WanVideoLoraSelectLM = importlib.import_module(
@@ -63,6 +67,7 @@ NODE_CLASS_MAPPINGS = {
     UNETLoaderLM.NAME: UNETLoaderLM,
     TriggerWordToggleLM.NAME: TriggerWordToggleLM,
     LoraStackerLM.NAME: LoraStackerLM,
+    LoraStackCombinerLM.NAME: LoraStackCombinerLM,
     SaveImageLM.NAME: SaveImageLM,
     DebugMetadataLM.NAME: DebugMetadataLM,
     WanVideoLoraSelectLM.NAME: WanVideoLoraSelectLM,

py/nodes/lora_stack_combiner.py

@@ -0,0 +1,26 @@
+class LoraStackCombinerLM:
+    NAME = "Lora Stack Combiner (LoraManager)"
+    CATEGORY = "Lora Manager/stackers"
+
+    @classmethod
+    def INPUT_TYPES(cls):
+        return {
+            "required": {
+                "lora_stack_a": ("LORA_STACK",),
+                "lora_stack_b": ("LORA_STACK",),
+            },
+        }
+
+    RETURN_TYPES = ("LORA_STACK",)
+    RETURN_NAMES = ("LORA_STACK",)
+    FUNCTION = "combine_stacks"
+
+    def combine_stacks(self, lora_stack_a, lora_stack_b):
+        combined_stack = []
+
+        if lora_stack_a:
+            combined_stack.extend(lora_stack_a)
+        if lora_stack_b:
+            combined_stack.extend(lora_stack_b)
+
+        return (combined_stack,)

tests/frontend/components/loraLoader.triggerWords.test.js

@@ -37,6 +37,13 @@ const updateConnectedTriggerWords = vi.fn();
 const mergeLoras = vi.fn();
 const getAllGraphNodes = vi.fn();
 const getNodeFromGraph = vi.fn();
+const getWidgetByName = vi.fn((node, name) =>
+  node?.widgets?.find((widget) => widget?.name === name) ?? null
+);
+const getWidgetSerializedValue = vi.fn((node, name) => {
+  const index = node?.widgets?.findIndex((widget) => widget?.name === name) ?? -1;
+  return index >= 0 ? node.widgets_values?.[index] : undefined;
+});
 
 vi.mock(UTILS_MODULE, () => ({
   collectActiveLorasFromChain,
@@ -47,6 +54,8 @@ vi.mock(UTILS_MODULE, () => ({
   },
   getAllGraphNodes,
   getNodeFromGraph,
+  getWidgetByName,
+  getWidgetSerializedValue,
   LORA_PATTERN: /<lora:([^:]+):([-\d.]+)(?::([-\d.]+))?>/g,
 }));
 
@@ -71,6 +80,9 @@ describe("Lora Loader trigger word updates", () => {
     mergeLoras.mockClear();
     mergeLoras.mockImplementation(() => [{ name: "Alpha", active: true }]);
 
+    getWidgetByName.mockClear();
+    getWidgetSerializedValue.mockClear();
+
     addLorasWidget.mockClear();
     addLorasWidget.mockImplementation((_node, _name, _opts, callback) => ({
       widget: { value: [], callback },
@@ -89,14 +101,21 @@ describe("Lora Loader trigger word updates", () => {
 
     // Create mock widget (AUTOCOMPLETE_TEXT_LORAS type created by Vue widgets)
     const inputWidget = {
+      name: "text",
       value: "",
       options: {},
       callback: null, // Will be set by onNodeCreated
     };
 
+    const metadataWidget = {
+      name: "__autocomplete_metadata_text",
+      value: { version: 1, textWidgetName: "text" },
+      options: {},
+    };
+
     const node = {
       comfyClass: "Lora Loader (LoraManager)",
-      widgets: [inputWidget],
+      widgets: [metadataWidget, inputWidget],
       addInput: vi.fn(),
       graph: {},
     };
@@ -106,6 +125,7 @@ describe("Lora Loader trigger word updates", () => {
     // The widget is now the AUTOCOMPLETE_TEXT_LORAS type, created automatically by Vue widgets
     expect(node.inputWidget).toBe(inputWidget);
     expect(node.lorasWidget).toBeDefined();
+    expect(getWidgetByName).toHaveBeenCalledWith(node, "text");
 
     // The callback should have been set up by onNodeCreated
     const inputCallback = inputWidget.callback;

tests/frontend/components/nodeModeChange.test.js

@@ -50,6 +50,13 @@ const getAllGraphNodes = vi.fn();
 const getNodeFromGraph = vi.fn();
 const getNodeKey = vi.fn();
 const getLinkFromGraph = vi.fn();
+const getWidgetByName = vi.fn((node, name) =>
+  node?.widgets?.find((widget) => widget?.name === name) ?? null
+);
+const getWidgetSerializedValue = vi.fn((node, name) => {
+  const index = node?.widgets?.findIndex((widget) => widget?.name === name) ?? -1;
+  return index >= 0 ? node.widgets_values?.[index] : undefined;
+});
 const chainCallback = vi.fn((proto, property, callback) => {
   proto[property] = callback;
 });
@@ -68,6 +75,8 @@ vi.mock(UTILS_MODULE, async (importOriginal) => {
     getNodeFromGraph,
     getNodeKey,
     getLinkFromGraph,
+    getWidgetByName,
+    getWidgetSerializedValue,
   };
 });
 
@@ -98,6 +107,9 @@ describe("Node mode change handling", () => {
     mergeLoras.mockClear();
     mergeLoras.mockImplementation(() => [{ name: "Alpha", active: true }]);
 
+    getWidgetByName.mockClear();
+    getWidgetSerializedValue.mockClear();
+
     addLorasWidget.mockClear();
     addLorasWidget.mockImplementation((_node, _name, _opts, callback) => ({
       widget: { value: [], callback },
@@ -119,8 +131,13 @@ describe("Node mode change handling", () => {
 
       await extension.beforeRegisterNodeDef(nodeType, nodeData, {});
 
-      // Create widgets with proper structure for lora_stacker.js
+      // Include a hidden metadata widget ahead of the actual text widget to match runtime ordering.
-      // Widget at index 0 is the AUTOCOMPLETE_TEXT_LORAS widget (created by Vue widgets)
+      const metadataWidget = {
+        name: "__autocomplete_metadata_text",
+        value: { version: 1, textWidgetName: "text" },
+        options: {},
+      };
+
       const inputWidget = {
         name: "text",
         value: "",
@@ -139,7 +156,7 @@ describe("Node mode change handling", () => {
 
       node = {
         comfyClass: "Lora Stacker (LoraManager)",
-        widgets: [inputWidget, lorasWidget],
+        widgets: [metadataWidget, inputWidget, lorasWidget],
         lorasWidget,
         addInput: vi.fn(),
         mode: 0, // Initial mode
@@ -189,11 +206,18 @@ describe("Node mode change handling", () => {
       const nodeType = { comfyClass: "Lora Loader (LoraManager)", prototype: {} };
       await extension.beforeRegisterNodeDef(nodeType, {}, {});
 
-      // Widget at index 0 is the AUTOCOMPLETE_TEXT_LORAS widget (created by Vue widgets)
+      const metadataWidget = {
+        name: "__autocomplete_metadata_text",
+        value: { version: 1, textWidgetName: "text" },
+        options: {},
+      };
+
       node = {
         comfyClass: "Lora Loader (LoraManager)",
         widgets: [
+          metadataWidget,
           {
+            name: "text",
             value: "",
             options: {},
             callback: null, // Will be set by onNodeCreated

tests/nodes/test_lora_stack_combiner.py

@@ -0,0 +1,51 @@
+from py.nodes.lora_stack_combiner import LoraStackCombinerLM
+
+
+def test_combine_stacks_preserves_order():
+    node = LoraStackCombinerLM()
+    stack_a = [
+        ("folder/a.safetensors", 0.7, 0.6),
+        ("folder/b.safetensors", 0.8, 0.8),
+    ]
+    stack_b = [
+        ("folder/c.safetensors", 1.0, 0.9),
+    ]
+
+    (combined_stack,) = node.combine_stacks(stack_a, stack_b)
+
+    assert combined_stack == stack_a + stack_b
+
+
+def test_combine_stacks_returns_second_when_first_empty():
+    node = LoraStackCombinerLM()
+    stack_b = [("folder/c.safetensors", 1.0, 0.9)]
+
+    (combined_stack,) = node.combine_stacks([], stack_b)
+
+    assert combined_stack == stack_b
+
+
+def test_combine_stacks_returns_first_when_second_empty():
+    node = LoraStackCombinerLM()
+    stack_a = [("folder/a.safetensors", 0.7, 0.6)]
+
+    (combined_stack,) = node.combine_stacks(stack_a, [])
+
+    assert combined_stack == stack_a
+
+
+def test_combine_stacks_returns_empty_when_both_empty():
+    node = LoraStackCombinerLM()
+
+    (combined_stack,) = node.combine_stacks([], [])
+
+    assert combined_stack == []
+
+
+def test_combine_stacks_allows_duplicate_entries():
+    node = LoraStackCombinerLM()
+    duplicate_entry = ("folder/shared.safetensors", 0.9, 0.5)
+
+    (combined_stack,) = node.combine_stacks([duplicate_entry], [duplicate_entry])
+
+    assert combined_stack == [duplicate_entry, duplicate_entry]

web/comfyui/lora_loader.js

@@ -7,6 +7,8 @@ import {
   mergeLoras,
   getAllGraphNodes,
   getNodeFromGraph,
+  getWidgetByName,
+  getWidgetSerializedValue,
 } from "./utils.js";
 import { addLorasWidget } from "./loras_widget.js";
 import { applyLoraValuesToText, debounce } from "./lora_syntax_utils.js";
@@ -148,7 +150,11 @@ app.registerExtension({
         };
 
         // Get the text input widget (AUTOCOMPLETE_TEXT_LORAS type, created by Vue widgets)
-        const inputWidget = this.widgets[0];
+        const inputWidget = getWidgetByName(this, "text");
+        if (!inputWidget) {
+          console.warn("LoRA Manager: text widget not found for Lora Loader");
+          return;
+        }
         this.inputWidget = inputWidget;
 
         const scheduleInputSync = debounce((lorasValue) => {
@@ -227,12 +233,16 @@ app.registerExtension({
       // Restore saved value if exists
       let existingLoras = [];
       if (node.widgets_values && node.widgets_values.length > 0) {
-        // 0 for input widget, 1 for loras widget
+        const savedValue = getWidgetSerializedValue(node, "loras");
-        const savedValue = node.widgets_values[1];
         existingLoras = savedValue || [];
       }
       // Merge the loras data
-      const mergedLoras = mergeLoras(node.widgets[0].value, existingLoras);
+      const inputWidget = node.inputWidget || getWidgetByName(node, "text");
+      if (!inputWidget) {
+        console.warn("LoRA Manager: text widget not found while restoring Lora Loader");
+        return;
+      }
+      const mergedLoras = mergeLoras(inputWidget.value, existingLoras);
       node.lorasWidget.value = mergedLoras;
     }
   },

web/comfyui/lora_stacker.js

@@ -5,6 +5,8 @@ import {
   updateDownstreamLoaders,
   chainCallback,
   mergeLoras,
+  getWidgetByName,
+  getWidgetSerializedValue,
 } from "./utils.js";
 import { addLorasWidget } from "./loras_widget.js";
 import { applyLoraValuesToText, debounce } from "./lora_syntax_utils.js";
@@ -28,7 +30,11 @@ app.registerExtension({
         let isSyncingInput = false;
 
         // Get the text input widget (AUTOCOMPLETE_TEXT_LORAS type, created by Vue widgets)
-        const inputWidget = this.widgets[0];
+        const inputWidget = getWidgetByName(this, "text");
+        if (!inputWidget) {
+          console.warn("LoRA Manager: text widget not found for Lora Stacker");
+          return;
+        }
         this.inputWidget = inputWidget;
 
         const scheduleInputSync = debounce((lorasValue) => {
@@ -122,12 +128,15 @@ app.registerExtension({
       // Restore saved value if exists
       let existingLoras = [];
       if (node.widgets_values && node.widgets_values.length > 0) {
-        // 0 for input widget, 1 for loras widget
+        const savedValue = getWidgetSerializedValue(node, "loras");
-        const savedValue = node.widgets_values[1];
         existingLoras = savedValue || [];
       }
       // Merge the loras data
-      const inputWidget = node.inputWidget || node.widgets[0];
+      const inputWidget = node.inputWidget || getWidgetByName(node, "text");
+      if (!inputWidget) {
+        console.warn("LoRA Manager: text widget not found while restoring Lora Stacker");
+        return;
+      }
       const mergedLoras = mergeLoras(inputWidget.value, existingLoras);
       node.lorasWidget.value = mergedLoras;
     }

web/comfyui/utils.js

@@ -114,6 +114,27 @@ export function getNodeKey(node) {
     return `${getNodeGraphId(node)}:${node.id}`;
 }
 
+export function getWidgetByName(node, widgetName) {
+    if (!node || !Array.isArray(node.widgets)) {
+        return null;
+    }
+
+    return node.widgets.find((widget) => widget?.name === widgetName) || null;
+}
+
+export function getWidgetSerializedValue(node, widgetName) {
+    if (!node || !Array.isArray(node.widgets) || !Array.isArray(node.widgets_values)) {
+        return undefined;
+    }
+
+    const widgetIndex = node.widgets.findIndex((widget) => widget?.name === widgetName);
+    if (widgetIndex === -1) {
+        return undefined;
+    }
+
+    return node.widgets_values[widgetIndex];
+}
+
 export function getLinkFromGraph(graph, linkId) {
     if (!graph || graph.links == null) {
         return null;

web/comfyui/wanvideo_lora_select.js

@@ -4,6 +4,8 @@ import {
   updateConnectedTriggerWords,
   chainCallback,
   mergeLoras,
+  getWidgetByName,
+  getWidgetSerializedValue,
 } from "./utils.js";
 import { addLorasWidget } from "./loras_widget.js";
 import { applyLoraValuesToText, debounce } from "./lora_syntax_utils.js";
@@ -31,7 +33,11 @@ app.registerExtension({
         let isSyncingInput = false;
 
         // Get the text input widget (AUTOCOMPLETE_TEXT_LORAS type, at index 2 after low_mem_load and merge_loras)
-        const inputWidget = this.widgets[2];
+        const inputWidget = getWidgetByName(this, "text");
+        if (!inputWidget) {
+          console.warn("LoRA Manager: text widget not found for WanVideo Lora Select");
+          return;
+        }
         this.inputWidget = inputWidget;
 
         const scheduleInputSync = debounce((lorasValue) => {
@@ -107,12 +113,15 @@ app.registerExtension({
       // Restore saved value if exists
       let existingLoras = [];
       if (node.widgets_values && node.widgets_values.length > 0) {
-        // 0 for low_mem_load, 1 for merge_loras, 2 for text widget, 3 for loras widget
+        const savedValue = getWidgetSerializedValue(node, "loras");
-        const savedValue = node.widgets_values[3];
         existingLoras = savedValue || [];
       }
       // Merge the loras data
-      const inputWidget = node.inputWidget || node.widgets[2];
+      const inputWidget = node.inputWidget || getWidgetByName(node, "text");
+      if (!inputWidget) {
+        console.warn("LoRA Manager: text widget not found while restoring WanVideo Lora Select");
+        return;
+      }
       const mergedLoras = mergeLoras(inputWidget.value, existingLoras);
       node.lorasWidget.value = mergedLoras;
     }