**how to reproduce**
* create a new diff as user1
* add 2 reviewers: user2 and user3
* user2 accepts the revision
* user1 merges the diff with "arc land"
**result:**
git log" shows "Reviewed by: user2, user3"
**problem**
user3 did not agree to the patch and maybe even has concerns
**solution**
do not add users to reviewed by if they haven't accepted the revision or add a "(unaccepted)" hint after the username.