When deselecting an ALSA MIDI input port, the change isn't applied until Dexed is restarted

[akwizgran]

In the audio/MIDI settings window, when deselecting an ALSA MIDI input port that was previously selected, Dexed continues to receive events on that port and when I reopen the audio/MIDI settings window the port shows as selected again.

However, if I reopen the settings window before any further events are received on that port, the port is still deselected. So it seems to be the arrival of new events that somehow reverts the change.

If I quit and restart Dexed before any further events are received on the port then the change is persisted, both in terms of what's shown in the settings window and in terms of Dexed no longer receiving events on the port.

I'm using Dexed 0.9.8. Thank you for this wonderful program!