Models hashes changed

[Melyns]

SDXL & Lora Models suddenly changed hash recently. I noticed that because images i was uploading to civitai were no longer showing resources i used. I tried CRC32 hashes of models i have downloaded from civitai, & the ones at civitai but they aren't the same. Example:

ZavyChromaXL - 71F4AC92 (civitai)
ZavyChromaXL - 92ACF471 (local)
JuggernautXL - AABEAB5C (civitai)
JuggernautXL - 5AD33354 (local)

Models are not corrupted or anything & function as expected. im not saying or blaming forge for this but i don't really know what happened. One thing i remember doing is downloading & using this extension for gnerating preview images & model info cards https://github.com/BlafKing/sd-civitai-browser-plus.git so could it possibly be the reason?

Can i change the hashes manually without having to redownload?

if you have an explanation for how could hashes change without file corruption please i'd like to understand

[DenOfEquity]

It's hashing the filename, not the file contents. I think the change was made when model loading behaviour was changed, possibly an abundance of caution^TM.
The hash used is SHA256.

[trunksn1]

Is the hash stored anywhere or is it get generated every time?

could it be possible to "inject" the correct hash, bypassing the hashing function of forge?

[mistermcluvin]

I reported this last week.
#1242 (comment)
I think Civitai is looking for the models AutoV2 Hash they have listed.

[JEAYNE]

ZavyChromaXL - 71F4AC92 (civitai)
ZavyChromaXL - 92ACF471 (local)

I'm facing the same problem. Here an example:

chroma_v41LowStepRl.safetensors - B49BFC57 (civitai)
chroma_v41LowStepRl.safetensors - 57fc9bb4 (local)

But there seems to be a certain logic to it: Reading the CRC32 of Civitail from left to right, byte by byte, is identical to reading the local CRC32 from right to left, byte by byte. (maybe a little/big endian issue on civitai side ?)

Notes:

• I computed the local CRC32 with several tools/libs
• The hashes (CRC32, SHA256...) correspond to the hashes of the file contents.
• The SHA256 displayed by civitai are ok.