av1parser: Might not invoke section 7.21. Reference frame loading process
Our parser does section 7.21, but invokes it unconditionally. This section is the reverse of 7.20 and should happen only if a show_existing_frame is a keyframe. This is part of the higher level process 7.4. Decode frame wrapup process.
Attaching a stream the stream that cause issues and triggers this case. It was found the the AV1 test vector currently in fluster is largely insufficient to validate the state management. This test was picked from Google tast-test.