I, too, am unable to reproduce the problem when using the arrow keys prior to hitting enter on synapctic in gnome-shell's application overview. I can, however, still easily produce the problem with "pkexec ls" from a terminal.
I, too, am unable to reproduce the problem when using the arrow keys prior to hitting enter on synapctic in gnome-shell's application overview. I can, however, still easily produce the problem with "pkexec ls" from a terminal.