For some reason the QuickView fails to display on Special:MediaSearch if the page language has been set using URL params or the "Language Select" dropdown in the left-hand navigation menu.
**Steps to Reproduce: **
Perform a media search in a non-English language, for example:
https://commons.wikimedia.org/wiki/Special:MediaSearch?type=bitmap&quickview=true&q=cat&debug=true&uselang=de
Make sure to let the page JS fully load; this can take extra time with debug mode on, and click an image result.
**Actual Results:**
The user is taken directly to the File page of the clicked result.
**Expected Results:**
The QuickView element should appear on the right-hand side of the same page. Compare with what happens when you search in the default language:
https://commons.wikimedia.org/wiki/Special:MediaSearch?type=bitmap&quickview=true&q=cat&debug=true