The problem has also another ugly effect in interactive shell usage (here gnome-terminal).
I tried to rename a directory with utf-8 chars, but make a silly type in the command. I tried to jump to the start of line with 'ctr+a'. The cursors jumps some chars left of the command (inside the prompt part). example: my Yirumav-Stay_in_Memory_기억에_머무르다/ Yiruma--Stay_in_Memory
