when a patch fails to apply cleanly, this can be confusing when the bot builds green, and a local sync rebases automatically (although this isn't specific to the CQ since it's coming via gerrit, the CQ bot message could be a bit more helpful since it is marking things as "failed").

the current text says:
The Commit Queue failed to apply your change cleanly in <build_url>. Please re-sync, rebase, and re-upload your change. Please see <CQ_doc_url> for more information.

perhaps it should say:

The Commit Queue failed to apply your change cleanly with a trivial rebase in <build_url> (see the CommitQueueSync step). Please manually re-sync, rebase, and re-upload your change. Please see <CQ_doc_url#TOC-The-Commit-Queue-didn-t-like-my-cha> for more information.