It is easy enough to fix. It's a two-line fix,
which will bring the
watchlist back to only shoing the latest edit. What the change will
*NOT* do, is showing the last edit by a non-robot editor. So I'm
afraid that this will not be usefull.
It would be useful to people like me whose watchlists are overrun by
bots, essentially providing the same relief as the Hide Bots filter on
Recent Changes. Over half the edits currently on my watchlist are from
bots, and at worst, I've seen over 2/3 of the edits being by bots,
making the watchlist difficult to read.
brian0918