Deleting default listen address in Android UI has no effect

[VA1DER]

In the Android version, removing the "default" address in "Menu->Settings->Syncthing Options-> Sync Protocol Listen Addresses" has no effect. The next time the server is restated, the setting reverts to "default". The web GUI must be employed to make the setting persist.

Version Information

App Version: 1.19.1
Syncthing Version: v1.19.1
Android Version: Android 10.0