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fix(metadata-overwrite): use sentinel default for clip_skip to accept wired 0

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Will Miao
2026-07-28 23:13:00 +08:00
parent f92f958682
commit c9e5e784fc
6 changed files with 52 additions and 20 deletions
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6
py/metadata_collector/constants.py
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@@ -1,5 +1,11 @@
"""Constants used by the metadata collector"""
# Sentinel value for clip_skip to distinguish "unconnected / widget default"
# from "user wired value 0". Both ComfyUI CLIPSetLastLayer (-24..-1) and
# A1111 conventions treat 0 as meaningless for clip skipping, but users may
# explicitly wire 0 to the overwrite node to express "no clip skip / default".
CLIP_SKIP_SENTINEL = -25
# Metadata categories
MODELS = "models"
PROMPTS = "prompts"

7
py/metadata_collector/metadata_processor.py
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@@ -678,7 +678,12 @@ class MetadataProcessor:
for overwrite_info in metadata.get(OVERWRITE, {}).values():
overwrite_params = overwrite_info.get("parameters", {})
for key, value in overwrite_params.items():
if value: # truthy check — only overwrite when user provided a real value
if key == "clip_skip":
# Accept any value from overwrite node (sentinel -25 already
# filtered upstream). Needed because falsy check treats 0
# as "not set" even though 0 is a valid wired input here.
params[key] = value
elif value: # truthy check — only overwrite when user provided a real value
params[key] = value
# Bridge: the overwrite node exposes the field as "model" (more accurate),

7
py/metadata_collector/node_extractors.py
View File

@@ -2,7 +2,7 @@ import json
import os
import re
from .constants import MODELS, PROMPTS, SAMPLING, LORAS, SIZE, IMAGES, IS_SAMPLER, OVERWRITE, METADATA_OVERWRITE_FIELDS
from .constants import CLIP_SKIP_SENTINEL, MODELS, PROMPTS, SAMPLING, LORAS, SIZE, IMAGES, IS_SAMPLER, OVERWRITE, METADATA_OVERWRITE_FIELDS
def _store_checkpoint_metadata(metadata, node_id, model_name):
@@ -1236,7 +1236,10 @@ class MetadataOverwriteExtractor(NodeMetadataExtractor):
overwrite_params = {}
for key in METADATA_OVERWRITE_FIELDS:
value = inputs.get(key)
if value: # truthy — only overwrite when user provided a real value
if key == "clip_skip":
if value != CLIP_SKIP_SENTINEL:
overwrite_params[key] = value
elif value: # truthy — only overwrite when user provided a real value
overwrite_params[key] = value
if overwrite_params: