Selecting an item parked its action in a ref and waited for the Modal's
onDismiss to flush it. MenuOverlay returns null as soon as the menu closes, so
the Modal unmounted and onDismiss never fired: every close-on-select action was
dropped. Creating a terminal from the compact workspace menu did nothing at all.
Wait on a timer instead. The grace period was always about giving UIKit time to
tear the surface down before a native presenter launches, and a callback fired
from inside a subtree being removed is racing its own removal. The sheet had no
flush at all, so it was broken the same way for a different reason.
Mohamed Boudra
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