Lucas_Werkmeister_WMDE added a comment.
I can also provoke the same error by visiting https://www.wikidata.org/w/index.php?title=T191413="">, so we definitely can’t fix this error in all cases, the title might just be garbage :)TASK DETAILhttps://phabricator.wikimedia.org/T191413EMAIL
Lucas_Werkmeister_WMDE added a comment.
Ah, I think I see where the problem comes from… this is the request URL (with the numeric part of the item ID redacted):
/w/index.php?title=Q█/="">
The trailing slash is probably the reason for the error – the page still has an entity content