| thiemowmde added a subscriber: Aleksey_WMDE. thiemowmde moved this task from needs discussion or investigation to in current sprint on the Wikidata board. thiemowmde added a project: Wikidata-Sprint. thiemowmde added a comment. |
I was able to reproduce this quite easily by merging two items, and the trying to undo (not revert) the last edit that turned the first item into a redirect. This fails much, much more often now because https://gerrit.wikimedia.org/r/377298 removed an optimization. No test properly covered this.
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To: thiemowmde
Cc: Aleksey_WMDE, gerritbot, thiemowmde, hoo, aude, Ladsgroup, Addshore, Lydia_Pintscher, Zolo, TerraCodes, Jay8g, Fralambert, matej_suchanek, Liuxinyu970226, WikidataFacts, Sjoerddebruin, MisterSynergy, Nikki, Mbch331, jayvdb, Aklapper, HizkiFW, Lordiis, GoranSMilovanovic, Adik2382, Jrbranaa, Th3d3v1ls, Ramalepe, Liugev6, QZanden, Lewizho99, Maathavan, Izno, Wikidata-bugs
Cc: Aleksey_WMDE, gerritbot, thiemowmde, hoo, aude, Ladsgroup, Addshore, Lydia_Pintscher, Zolo, TerraCodes, Jay8g, Fralambert, matej_suchanek, Liuxinyu970226, WikidataFacts, Sjoerddebruin, MisterSynergy, Nikki, Mbch331, jayvdb, Aklapper, HizkiFW, Lordiis, GoranSMilovanovic, Adik2382, Jrbranaa, Th3d3v1ls, Ramalepe, Liugev6, QZanden, Lewizho99, Maathavan, Izno, Wikidata-bugs
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