NM fails to start secondary VPN when secrets are stored "for this user only"
I've configured a vpnc VPN to automatically connect for a Wi-Fi SSID in nm-connection-editor. When I set the VPN profile secrets to be stored "for this user only", NM fails to start the VPN and shows a notification "VPN requires a password". As soon as I click on the notification the VPN is in fact started without any password entry. When I instead set the secrets to be stored "for all users" the notification does not show and the VPN is activated.
I would expect NM to be able to start a secondary VPN in both secret storage modes or to warn the user when setting up a "only for this user"-VPN as a secondary in nm-connection-editor.
I was using NM 1.22.10 on Ubuntu 20.04.