[LoRA
] Revert original behavior for scale / unscale
#1029
Merged
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What does this PR do?
Partially fixes huggingface/diffusers#5414 - fix proposed by @BenjaminBossan
A fix is going to be upstreamed on diffusers as well
For unscaling, we can use a new argument to divide back the current scale with the scale argument, if no scale is passed,
self.scale[adapter_name]
will be retrieved back to its original value.