Languages filter bug

Something has changed on main “models” or “datasets” page about a month ago:
if you go filter by languages, and type for instance “Croat” in filter box, you get no results. If you type “Hr” (like “Hrvatski” or Croatian in native), you get “Croatian” two times. ???
tl/dr language Display name is not the same as name being filtered by, and data is messed cause of this

also, is there any way of searching just adapters for models, or plans to implement such filter?