Crash on macOS after updating function key shortcut

[seanbethard]

I changed the function key for Show Desktop from F11 to Right Option in the Mission Control settings interface. Then I changed it to F3 in the Keyboard > Shortcuts > Mission Control interface by hitting fn-F3/Mission Control button on a Magic Keyboard so that the function version or inverted version of the Mission Control key would be Show Desktop.

Then I remembered that my Touch Bar has a different set of "special feature" keys than the special feature keys at the top of the Magic Keyboard so an inverted Mission Control or function version of Mission Control would only work on Magic Keyboard. Any rules based on special function keys would mean managing Touch Bar and Magic Keyboard keys separately.

For example, when Touch Bar shows Expanded Control Strip, the special function keys are similar to the special function keys at the top of a Magic Keyboard but F4-F6 are different. I remove the Siri button and drag the brightness controls to the left of the volume controls in the Expanded Control Strip so in my Touch Bar the Mission Control special function key ends up in the F1 position. Realizing this, I clicked Restore Defaults. The shortcut for Show Desktop changed from F3 to F11, only Mullvad Browser crashed and in the crash report I saw a line about function keys.

I've tried setting the same shortcuts in the same order but am not able to reproduce the crash.