After duplicating a layer group that contains regular paint layers, using the transform tool on the group will interact fine until you finalize the transformation, at which point Krita never finishes the operation. You are unable to save, and clicking "cancel process and save" does not work. Closing the file without saving causes Krita to crash afterwards.

Reproducible: Always

Steps to Reproduce:
1. Duplicate a group with paint layers in it.
2. Use the transform tool to modify it in any way.
3. Finalize the transformation.
(4. Attempt to save the document and it will warn you of incomplete operations.)

Actual Results:  
Krita never finishes the transformation and the document cannot be saved.

Expected Results:  
Krita finishes the operation.