Comment 60 for bug 1766137

Following #51 and #56 from Davide (tarski10)

I was able to reproduce. *<Some comments added>*.

gdm3/ 3.28.0-0-0ubuntu1.1
if I enter the wrong password once or twice and then I enter the correct password now I can access,
but if I enter the wrong password three times I return to the user choice screen and after clicking on my username *<and waiting a few seconds>* and entering the correct password the screen freezes *<with my login visible>* and nothing happens

*<I can move my mouse, select characters in password box, doing the ctrl-alt-F1 / ctrl-alt-f2 trick doesn't help, reboot needed>*