If what you described would make it to our PR queue, it would definitely not pass the gates.
The idea was to track AI-only changes and add the trailer when such changes were detected AND the setting was enabled. Obviously, we didn't want to attribute all changes to AI. There is a bug in change detection (which slipped through testing), which led to even non-AI changes being tracked. And thus we have this problem.
The PR linked here wasn't even implementing the feature, it was changing the default for the setting.
> (which slipped through testing)
In another comment you say you caught it in testing and didn't think it needed fixing, which is it?