Pointer Cancellation (2.5.2)

Actions triggered by long-press functions are only completed after the user has pressed the element for the specified duration and released it within the target area.

Down-event trigger with no cancellation:

This button triggers deletion on mousedown with no way to cancel or undo:

Note: Hard to auto-test. A human tester or AI is needed to confirm that a method for cancellation or undoing is available, as this cannot be detected programmatically.