Comment 4 for bug 1608558

The problem is - who would have thought - the file separator:

Current dir is: maps\My_Maps
Base dir is: maps\My_Maps

NOCOM double-clicked! (entering subdir)
Current dir is: maps/My_Maps/gun ain
Base dir is: maps\My_Maps
Dirs not equal - add parent

NOCOM double-clicked! (back to original dir)
Current dir is: maps/My_Maps
Base dir is: maps\My_Maps
Dirs not equal - add parent

NOCOM double-clicked! (fake parent dir)
<crash>

So, after fixing this, we should also test nested subdirectories.