Gnome VPN password handling is broken
Password prompt for VPN connection shows neither using GUI nor using nmcli. At least I thought it does not show up. But right when I started to create this ticket it finally showed up but did not react to enter nor to click on any button. In the end, I had to restart my laptop. There is plenty of errors in my journalctl (password-prompt.log).
$ rpm -q gnome-shell
gnome-shell-3.29.2-1.fc29.x86_64
$ rpm -q NetworkManager
NetworkManager-1.12.0-1.fc29.x86_64