There's always wtf, why did we add this feature, but at least in my experience, once a week or so I run into something in this category. Me: "AI, please cleanup/refactor/improve this thing" AI: "Roger that! I deleted the file so now it's perfectly clean" ... insert W.T.F.
Same but I have seen it try and change my tests because it decided that it’s code was correct and my tests were incorrect.
I saw it’s thinking tokens said something along the lines of “I have implemented it correctly but the test is failing. I’ll update the tests so the pipeline passes”