Inconsistency in reputation (history) for new hire

Question

There seems to be something wrong with the vote-to-reputation converter or whatever it's called.

This answer by the new Valued Associate received 12 upvotes so far:

but his reputation is only 21, which you'd think correspond to only two upvotes, except that his reputation history only shows 21 reputation:

Moderators see somewhat less about staff user details than they do about regular users, but I'm pretty sure I'm not missing a -100 penalty for spamming or rude/abusive behaviour - that answer is their only post here so far.

Answer 1

This was caused by an account merge that failed to trigger a reputation recalc at the end of the merge. So essentially it attached the post to the new profile and then started incrementing their reputation again from 1, ignoring all the previously accumulated votes and reputation.

Deleting and undeleting a post is the quickest way to force a recalc for a profile. Now that the system has looked at the entire history, everything is normal. :)