On a Wikipedia, if you try to add a link to an article that does not have a Wikidata item, for example the enwiki article "Nothing", the "Link with page" dialogue will appear, with the text "The page you have chosen is already associated..." and a list of links. However, the list may look like this:

čeština Nic
čeština Nic
dansk Intet (begreb)
Deutsch Nichts
Deutsch Nichts
English Nothing
English Nothingness

Some languages repeat, which is caused by the pages existing in Wikipedia and Wikiquote, and probably other projects. I believe this repetition of languages is confusing for the user, and should include project names as well, for example:

čeština Nic
Wikicitáty čeština Nic
dansk Intet (begreb)
Deutsch Nichts
Wikiquote Deutsch Nichts
English Nothing
Wikiquote English Nothingness