Reconnect on network change should stop VPN first

[scruel]

I have a profile which won't be able to connect with my WiFi, and when I switch back to this WiFi, the OpenVPN connection was still alive, but keep getting refused errors:

Reproduce steps;

• Uncheck keep tun option, unlimited retries
• Connect VPN through mobile network
• Switch network to WiFi (VPN unconnectable)
• Check the log, still connected but traffic keep got refused.

OpenVPN Connect didn't have this issue, it will disconnect the VPN if switched then wait until the server to be connectable (no timeout), rather than keep the dead VPN to be connected.

Version: 0.7.51
Android 13

[schwabe]

Please include a full log that also includes the network switch.