**Steps to reproduce:**
* Search for an Entity using it's `mul` label or alias via the inline search.
** e.g. https://test.wikidata.org/w/api.php?action=wbsearchentities&search=John+Doe+II&language=en
* The inline search itself is unable to find all `mul` labels or aliases (Update: This used not to find any matches "No match was found.", now it finds the alias "John Doe III" of Q225561 that I created on test, but e.g. still not the Label "John Doe II" of Q57591. For Special:Search we get the opposite results.)
**What should have happened instead?**
The inline search should find Entities by searching for their `mul` label or alias (just like other language code).
* The same search works just fine using the advanced search:
* This behavior can also be reproduced within entity lookup fields, for example, when adding a statement value
 We understand the problem that leads to this issue.
 The problem is solved (or if solving the problem is out of scope, then please create a follow-up task, so we can discuss it).