In the RingRTC library before 2.72.0 for Signal, a peer that saturates a call's FSM queue can interfere with the ability of a local hangup to tear the call (with its audio and perhaps also video track) down.Referenceshttps://github.com/signalapp/ringrtc/commit/4b1b6fa53c9f30c87c8ea78e44675d4a13e1e4d3https://github.com/signalapp/ringrtc/compare/v2.71.0...v2.72.0
