No password prompt when password is wrong or empty

[Chris Knutson]

When an OpenVPN configuration requires a password, but one is not saved in the VPN configuration, Network Manager should prompt for a password if the password is empty or not saved.

It should also prompt for a password if their is a saved password which is invalid.

OpenVPN supports using time based OTP (Google Auth and Similar), in which the one time code is entered in the password field.

This requires a user to open their VPN configuration every time they login and edit the configuration before they connect, instead of simply trying to connect, and getting a password dialog to enter their one time password.

network-manager-openvpn 1.1.93-1ubuntu1.1 amd64 network management framework (OpenVPN plugin core)

Ubuntu 16.04.2 LTS \n \l

Linux 4.4.13-040413-generic #201606072354 SMP Wed Jun 8 03:56:47 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux