Reverting TYPE 5 edit tests found on page Asynchronous circuit(history)diff A ?? not vandalism, but not an improvement to the article; the IP made a similar edit (but without the IP signature) to Synchronous circuit around the same time, and this was manually undone without comment by an experienced editor. So the bot "guessed right" that this was not an improvement to the article.
Reverting TYPE 5 edit tests found on page Mazraat el Daher(history)diff AJ ?? IP signature, Example.JPG, other test edits and unexplained deletion of content; however, the content that was deleted should have been, so I've removed it manually
Reverting TYPE 5 edit tests found on page Gonbad(history)diff AB Y probably a good faith attempt but replaced some perfectly fine etymological info with an irrelevant and not particularly well-written paragraph
Reverting TYPE 5 edit tests found on page Miss May I(history)diff AA ?? - mixed edit: removal of vandalism, insertion of two IP signatures, and an unsourced genre change. Cleaned up the vandalism manually after the revert.
Reverting TYPE 5 edit tests found on page IPad (3rd generation)(history)diff A ?? editor inserted valid, referenced text with signature attached; bot reverted and left the "please don't sign your contributions" message on their talk page; they re-inserted the text without the signature.
Reverting TYPE 5 edit tests found on page Gareth Southgate(history)diff A Y good-faith edit that added (1) an IP signature, (2) a broken reference to the article subject's website, and (3) text copied word-for-word from that website.