Cannot undo a revision if it only includes tag edits

I was reviewing history of revisions for the first post of a topic. I noticed that one of the revisions incorrectly removes tags that should be attached to the topic. The revision didn’t change the content of the post, just the tags. When I press “Revert to revision 12”, I get a message saying “The current version is same as the version you are trying to revert to.” and I’m unable to quickly restore the tags from the previous revision