Focus is temporarily lost when a new input device gets connected

[FreeFull]

When an input device gets plugged in, the currently active window loses focus for a short moment. This is particularly problematic with Xwayland, since it seems Xwayland sends one last keypressed event after the keyrelease, resulting in stuck keys. I have tested the issue using Minecraft and Sunvox; When the issue occurs, the keys appear to be stuck until pressed again. I originally hit the issue due to a flaky connection to my laptop's USB webcam (which exposes an input device), but I can also reproduce it by plugging in a USB keyboard. The issue does not occur under rootston or Weston.

$ swaymsg -t get_version
sway version 1.0-rc1-234-gb2cfcebe (Apr 15 2019, branch 'master')

Output from xev when the bug gets triggered:
xev.txt
Output from weston-eventdemo when the bug gets triggered:
eventdemo.txt
Sway log:
swaylog.txt

[Xyene]

Hi, is this still reproducible with the latest sway/wlroots master? I haven't been able to do so by unplugging/replugging my mouse or keyboard.

[FreeFull]

Seems like the bug has been fixed.

[FreeFull]

I'm sorry, but it seems the issue actually still occurs. I made the mistake of being too lazy to actually test it.. Tested with sway version 1.4-52bd6aec (May 5 2020, branch 'master'). It specifically happens when plugging an input device in, and doesn't occur when unplugging one.