This has been going on for years, the unwanted changes and their reversion keep spamming the log, which is especially annoying for those who are subscribed to the feed. Here is a recent and ongoing example.
It seems around 100% of reverted changes from logged out users are undesirable and should themselves be reverted, so the easy fix would be to make the undo function available to logged in users only. If you want to implement a more granular counter-measure, that's great too!
This has been going on for years, the unwanted changes and their reversion keep spamming the log, which is especially annoying for those who are subscribed to the feed. Here is a recent and ongoing example.
It seems around 100% of reverted changes from logged out users are undesirable and should themselves be reverted, so the easy fix would be to make the
undofunction available to logged in users only. If you want to implement a more granular counter-measure, that's great too!