Windows accept keyboard input while being moved or resized. This leads to unexpected behaviour while moving or resizing windows using the arrow keys. Steps to reproduce: Set a keyboard shortcut to trigger moving/resizing windows. Open a text file in an editor, and trigger the resize shortcut. Use the arrow keys to move the window. The window moves as expected, but the cursor position also moves in the window. Expected behaviour: Windows should not accept keyboard input while being moved or resized.
That should not happen. Either the key cannot move the window or the key should not end up in the application. Both at the same time should be impossible. The best explanation I have is that the keyboard grab failed.
*** This bug has been marked as a duplicate of bug 368827 ***