fix(prompt): invalidate dynamic wildcard cache without seed (#895)

py/nodes/prompt.py

@@ -3,7 +3,11 @@ from __future__ import annotations
 from typing import Any
 import inspect
 
-from ..services.wildcard_service import get_wildcard_service, is_trigger_words_input
+from ..services.wildcard_service import (
+    contains_dynamic_syntax,
+    get_wildcard_service,
+    is_trigger_words_input,
+)
 
 
 class _PromptOptionalInputs:
@@ -90,6 +94,19 @@ class PromptLM:
     )
     FUNCTION = "encode"
 
+    @classmethod
+    def IS_CHANGED(
+        cls,
+        text: str,
+        clip: Any | None = None,
+        seed: int | None = None,
+        **kwargs: Any,
+    ):
+        del clip, kwargs
+        if contains_dynamic_syntax(text) and seed is None:
+            return float("NaN")
+        return False
+
     def encode(
         self,
         text: str,

py/nodes/text.py

@@ -1,6 +1,6 @@
 from __future__ import annotations
 
-from ..services.wildcard_service import get_wildcard_service
+from ..services.wildcard_service import contains_dynamic_syntax, get_wildcard_service
 
 
 class TextLM:
@@ -41,5 +41,11 @@ class TextLM:
     OUTPUT_TOOLTIPS = ("The text output.",)
     FUNCTION = "process"
 
+    @classmethod
+    def IS_CHANGED(cls, text: str, seed: int | None = None):
+        if contains_dynamic_syntax(text) and seed is None:
+            return float("NaN")
+        return False
+
     def process(self, text: str, seed: int | None = None):
         return (get_wildcard_service().expand_text(text, seed=seed),)

py/services/wildcard_service.py

@@ -31,6 +31,14 @@ def _is_numeric_string(value: str) -> bool:
     return bool(_NUMERIC_PATTERN.match(value))
 
 
+def contains_dynamic_syntax(text: str) -> bool:
+    """Return True when text contains supported wildcard or option syntax."""
+
+    return isinstance(text, str) and bool(
+        _WILDCARD_PATTERN.search(text) or _OPTION_PATTERN.search(text)
+    )
+
+
 def get_wildcards_dir(create: bool = False) -> str:
     """Return the managed wildcard directory inside the settings folder."""
 
@@ -397,6 +405,7 @@ def get_wildcard_service() -> WildcardService:
 
 __all__ = [
     "WildcardService",
+    "contains_dynamic_syntax",
     "get_wildcard_service",
     "get_wildcards_dir",
     "is_trigger_words_input",