Last modified: 2014-04-29 06:14:05 UTC
After the page in the URL has been moved to a different namespace, everything seems to work (except that it needed a dummy edit to the source text and remarking), but see the URL. Translate keeps saying that the "Page display title" translation unit needs updating and adding !!FUZZY!! to it when you open it for translation because "Namespace changed from the definition", unless you change it to "Help:". The error message is literally correct, but you should be able to set a different (fake) namespace if you want to; this works e.g. in https://meta.wikimedia.org/w/index.php?title=Translations:Grants:Index/Page_display_title/it&action=history hence why we think it's related to the page move.
Steps to reproduce: 1) (from comment #0) > page[,] move [it] to a different namespace