Editing pages produces, about one case in several hundred, a whole bunch of duplicate revisions in the page history. This issue most likely cropped up with the recent sync to r41053.
Possibly related: [[Wikipedia:Village pump (technical)#Strange error]] (one of the articles there is listed below too).
Examples of this phenomenon follow (these are all sets of consecutive diffs):
http://en.wikipedia.org/w/index.php?title=2008&diff=239778370&oldid=239778233
http://en.wikipedia.org/w/index.php?title=2008&diff=next&oldid=239778370 http://en.wikipedia.org/w/index.php?title=2008&diff=next&oldid=239778382
http://en.wikipedia.org/w/index.php?title=Argentina_national_football_team&diff=239779781&oldid=239779072
http://en.wikipedia.org/w/index.php?title=Argentina_national_football_team&diff=next&oldid=239779781 http://en.wikipedia.org/w/index.php?title=Argentina_national_football_team&diff=next&oldid=239779793 then http://en.wikipedia.org/w/index.php?title=Argentina_national_football_team&diff=next&oldid=239779795 http://en.wikipedia.org/w/index.php?title=Argentina_national_football_team&diff=next&oldid=239779818
http://en.wikipedia.org/w/index.php?title=Stone_Cold_Steve_Austin&diff=prev&oldid=239780164
http://en.wikipedia.org/w/index.php?title=Stone_Cold_Steve_Austin&diff=next&oldid=239780164 then http://en.wikipedia.org/w/index.php?title=Stone_Cold_Steve_Austin&diff=next&oldid=239780168 http://en.wikipedia.org/w/index.php?title=Stone_Cold_Steve_Austin&diff=next&oldid=239780227 then http://en.wikipedia.org/w/index.php?title=Stone_Cold_Steve_Austin&diff=next&oldid=239780234 http://en.wikipedia.org/w/index.php?title=Stone_Cold_Steve_Austin&diff=next&oldid=239780333
http://en.wikipedia.org/w/index.php?title=United_Church_of_Christ&diff=239780794&oldid=239780725
http://en.wikipedia.org/w/index.php?title=United_Church_of_Christ&diff=next&oldid=239780794
http://en.wikipedia.org/w/index.php?title=Tottenham_Hotspur_F.C.&diff=239774277&oldid=239774244
http://en.wikipedia.org/w/index.php?title=Tottenham_Hotspur_F.C.&diff=next&oldid=239774277
http://en.wikipedia.org/w/index.php?title=Tottenham_Hotspur_F.C.&diff=next&oldid=239774278 then
http://en.wikipedia.org/w/index.php?title=Tottenham_Hotspur_F.C.&diff=next&oldid=239774418
http://en.wikipedia.org/w/index.php?title=Tottenham_Hotspur_F.C.&diff=next&oldid=239774493
http://en.wikipedia.org/w/index.php?title=Tottenham_Hotspur_F.C.&diff=next&oldid=239774497
http://en.wikipedia.org/w/index.php?title=Tottenham_Hotspur_F.C.&diff=next&oldid=239774505 then
http://en.wikipedia.org/w/index.php?title=Tottenham_Hotspur_F.C.&diff=next&oldid=239774909
http://en.wikipedia.org/w/index.php?title=Tottenham_Hotspur_F.C.&diff=next&oldid=239774964
http://en.wikipedia.org/w/index.php?title=Modern_Sounds_in_Country_and_Western_Music&diff=239782219&oldid=239782062
http://en.wikipedia.org/w/index.php?title=Modern_Sounds_in_Country_and_Western_Music&diff=next&oldid=239782219
http://en.wikipedia.org/w/index.php?title=Modern_Sounds_in_Country_and_Western_Music&diff=next&oldid=239782221
http://en.wikipedia.org/w/index.php?title=Modern_Sounds_in_Country_and_Western_Music&diff=next&oldid=239782223
http://en.wikipedia.org/w/index.php?title=Modern_Sounds_in_Country_and_Western_Music&diff=next&oldid=239782224
http://en.wikipedia.org/w/index.php?title=Viru_Viru_International_Airport&diff=239782313&oldid=239782117
http://en.wikipedia.org/w/index.php?title=Viru_Viru_International_Airport&diff=next&oldid=239782313
Version: 1.14.x
Severity: major