Last modified: 2014-10-21 20:40:31 UTC
Previously, there was only one entry per page in my watchlist, even if that page had been edited multiple times. After the MediaWiki update at Commons to 1.25wmf4, every *change* is listed in my watchlist (resulting in some pages listed multiple times).
Reported on https://commons.wikimedia.org/wiki/Commons:Village_pump#Watchlist_broken.3F [[:c:Special:Preferences#mw-prefsection-watchlist]] under "Advanced options", "Expand watchlist to show all changes, not just the most recent" can be de-activated again and then it'll be back to normal.
Change 167884 had a related patch set uploaded by Hoo man: Set extendwatchlist = 0 for wmf wikis https://gerrit.wikimedia.org/r/167884
Change 167884 merged by jenkins-bot: Set extendwatchlist = 0 for wmf wikis https://gerrit.wikimedia.org/r/167884
Change approved and deployed.