R1:1f2306999bb5

Fix a case where "Accept + Comment" would ignore the "Accept"

Summary:
Ref T11114. When you comment, we try to upgrade your review status to "commented".

This can conflict with upgrading it to "accepted" or "rejected", or removing it entirely.

For now, just avoid making this update. After T10967, I expect "you commented" to be orthogonal to accepted/rejected so it should stop conflicting on its own.

Test Plan:
- As an "added" reviewer, accepted a revision with a comment in the same transaction.