When trying to rename a page over another existing page in ro.wp, after I check the box to delete the existing page, the rename is not done, and I get the error:
[XEb0MApAIC4AAEE42WIAAAAJ] 2019-01-22 10:45:05: Excepție fatală de tipul „MWException”
(translated: Fatal error "MWException")
No other informations exist.
This doesn't happen in all cases, for instance I have no problem when these. I think the gamechanger is the fact that both articles are linked to Wikidata items, and the treatment of this case is where the exception occurs.