Switching Monitor causes overlay to become regular window

[trigg]

Steps to Reproduce
Steps to reproduce the behavior:

1. Start up overlay
2. Plug in another display which, when plugged in, disables the built-in display and runs single-monitor

Expected behavior
Window continues to be a Layer-shell window on the new display

Problematic behavior
Overlay layer-shell window becomes a regular window with a transparent background

Desktop (please complete the following information):
Arch Linux
Wayfire started from TTY

Installation Method
Direct from git

Additional context
Most likely cause is the monitor change event is not caught. If it is, the monitor option might be suspect.

This begs a further question - if the specified monitor doesn't exist should we pick another monitor to display on or not display at all?

[trigg]

While grabbing these change events and re-setting the monitor fixes DPI scale changes and resolution changes much better now, it does not fix this.

On top of this, once the monitor the layer-shell was attached to has gone once it no longer renders to the window, even after the monitor returns.

For now I'm working around this by adding exec discover-overlay to my kanshi config which runs a new overlay instance and kills the old one on every monitor change. This is not a fix, but may help users while I work this out.

[trigg]

fixed in WM