1bea48f249
For self-initializing segments, DefaultTrackOutput receives a null format and then the actual format. This broke the deduplication logic in InfoQueue.format, since there were two transitions: FormatX->Null and Null->FormatX. This CL allows deduplication to succeed in this case. ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=129081583