A combo another app already registered is consumed by Windows and delivered
to that app — our keydown listener never fires. The capture therefore sat on
"Press combo…" indefinitely with no feedback, which is exactly what a user
sees when they try to re-assign a taken combo.
Worse, while armed the capture preventDefaults every keystroke, so an
abandoned capture froze the app's keyboard until Esc.
10 s timeout that restores the button and explains the likely cause: the
combo never reached us because another app owns it.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
r-zakarya
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