Change only the target face in an existing image

[a3nima]

I have limited time to develop, so before asking for a feature, please read the FAQ section. Some features will not be implemented by choice. Use the discussion section for anything else.

In an earlier version of A1111 it was possible to use Faceswaplab with inpainting and not mask anything. Still FSL would swap the face. Now this does not seem to work anymore. If you want to only swap a face and change absolutely nothing else in an image its hard to to now because even a small denoising will change details (in other faces/persons for example) and using a mask also introduces new problems.

I would like to have a feature to only swap the target face and dont change anything else. (Reactor has implemented this in the extra tab.) Or make it work again in inpainting and explain the way.