Steps to reproduce:
- Select files "file1", "file2" and copy or move them to target panel using queue or background copying/moving.
- During the copying or moving of "file1" drag "file3" to target panel and don't drop it.
- Wait until overwrite file dialog for "file2" appears.
Actual result: mouse clicks cannot be used for pressing buttons, only keyboard buttons can be used for intaractions with this dialog.