Remote encoder should set its encoder frame callback to nullptr when being released. Otherwise we end up in https://ews-build.s3-us-west-2.amazonaws.com/iOS-14-Simulator-WK2-Tests-EWS/r414039-1828/webrtc/video-rotation-crash-log.txt.
Created attachment 414048 [details] Patch
Committed r269782: <https://trac.webkit.org/changeset/269782> All reviewed patches have been landed. Closing bug and clearing flags on attachment 414048 [details].
<rdar://problem/71373877>