I recently made an edit to this question, which was subsequently reverted by the post owner. However, it was later rolled back again by a moderator to my edit:
When I made the edit, I was awarded a simple 2 reputation points:
And, when the post was rolled back by the owner, I lost those 2 reputation points:
But, when the moderator rolled the post back to my edit, the reputation was not re-awarded. While this doesn't bother me, it does make me curious as to why the reputation would be awarded, and taken away, but not awarded back. Is this a bug, or by design? If it's by design, why?
Note: I'll add the bug tag if this is determined to be a bug.