Retouch clipped after rotate and perspective

Is there an existing issue for this?

• I checked and did not find my issue in the already reported ones

Describe the bug

In the standard pixel pipe when Rotate and perspective moves the "patch" out of the image the destination il clipped (see attachment 2).
Moving "retouch" before "Rotate and perspective" fixes the problem

Steps to reproduce

1. Retouch the image copying a "patch" taken from the border of the image over a distracting detail
2. Rotate and perspective moving the patch out of the image
3. The patched area is now only partially covered
4. move the Retouch module before "Rotate and perspective" to fix the problem

Expected behavior

Darktable should consider the original full image when retouching

Logfile | Screenshot | Screencast

No response

Commit

No response

Where did you obtain darktable from?

distro packaging

darktable version

5.4.0

What OS are you using?

Linux

What is the version of your OS?

Ubuntu 24.10

Describe your system

No response

Are you using OpenCL GPU in darktable?

Yes

If yes, what is the GPU card and driver?

nvidia

Please provide additional context if applicable. You can attach files too, but might need to rename to .txt or .zip

No response

Reproduce the issue in darktable 5.4.0 using the standard pixel pipe: retouch a border patch, then apply Rotate and perspective so the patch leaves the image. Compare the result with Retouch placed before Rotate and perspective, then trace these modules' processing to determine why the destination is clipped. Done means the retouched area remains fully covered when the transform moves the patch out of the image.