to ensure consistency for both FID and FEC-FR ssrc-groups. BUG=chromium:1454860 Change-Id: I61277e73e0a28f5773260ec62c268bdc8c2cd738 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/309760 Reviewed-by: Florent Castelli <orphis@webrtc.org> Reviewed-by: Harald Alvestrand <hta@webrtc.org> Commit-Queue: Philipp Hancke <phancke@microsoft.com> Cr-Commit-Position: refs/heads/main@{#40347}