Yeah, I think the conversion is where it gets messed up. It seems like webp images bypass this conversion step. It is a relatively new format though, so it won't work in old browsers.
While setting up pict-rs on my cluster I noticed a pict-rs environment variable to convert all uploaded pictures to the png format. That may also be activated. I guess that makes de-duplication way easier.
I think you might have better luck uploading them in webp format.
example
I uploaded a gif to lemmy, it seems to pass it to pict-rs and convert it.
Yeah, I think the conversion is where it gets messed up. It seems like webp images bypass this conversion step. It is a relatively new format though, so it won't work in old browsers.
While setting up pict-rs on my cluster I noticed a pict-rs environment variable to convert all uploaded pictures to the png format. That may also be activated. I guess that makes de-duplication way easier.