Backport of "redenc: fix setting of extension ID for twcc" into 1.22
Backport of !3785 (merged) "redenc: fix setting of extension ID for twcc".
Commits:
- 2048a0a4 redenc: fix setting of extension ID for twcc
Backport of !3785 (merged) "redenc: fix setting of extension ID for twcc".
Commits: