Steps to replicate the issue (include links if applicable): See below
What happens?:
AutoModerator would send repetitive notifications on the user's talkpage on Chinese Wikipedia, even if it only rollback one time. For instance: AutoModerator rollbacked 1.162.12.66's edit, but it sent two notification on their talkpage.
This issue has been occurring since 2/20 in every rollbacks (See AutoModerator's contributions on zhwiki).
What should have happened instead?:
It should only send one notification per one rollback.