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CalamitousFelicitousness
70630bc6b4
read_info_from_image had three issues that together corrupted
metadata in the Process tab and img2img batch:
- items aliased image.info, so items.pop('parameters', ...) mutated
the source PIL image's info dict in place
- after popping, parameters was never restored to items, so callers
that re-stamp items onto a downstream image (postprocessing.py,
img2img.py) silently dropped the original generation params for
any input without EXIF UserComment
- synthetic width/height/mode keys were stuffed into items and ended
up persisted as PNG tEXt chunks even though no caller reads them
Result for the Process tab: upscaled outputs lacked the original
parameters chunk and instead had useless width/height/mode chunks
holding the source's pre-upscale dimensions. With this fix items is
a copy, parameters is restored after parsing, and width/height/mode
no longer leak into saved files.