A tracked finger lifted (or the browser cancelled it). The survivors
re-snapshot the pinch (2 → 1 continues as a look from the survivor's own last
position, so nothing jumps); the last finger ends the gesture. Runs even while
disabled so a finger that lifts after enabled = false is not tracked forever.
A tracked finger lifted (or the browser cancelled it). The survivors re-snapshot the pinch (2 → 1 continues as a look from the survivor's own last position, so nothing jumps); the last finger ends the gesture. Runs even while disabled so a finger that lifts after
enabled = falseis not tracked forever.