Drag'n'dropping a folder randomly copies instead of moving
Steps to reproduce:
- open a nautilus window and navigate to a folder A that contains several folders
- open another nautilus window and navigate to another folder B
- drag a folder from folder A to folder B
- repeat step 3 several times
Expected: given that folders A and B are on the same physical filesystem, all folders dragged and dropped should be MOVED, not copied. If A and B were on different physical disks, then all draggged and dropped folders should be systematically copied, but this is not the case.
Observed: some folders get moved, as expected, but some others, randomly, get copied instead. If you then delete the copy and repeat the exact same drag-n-drop operation, most of the times it will be moved, as expected. That is, the behavior is completely random.