Amenity=research_institute should be rendered as same as university

[LaoshuBaby]

Expected behavior

when an area was tagged with amenity=research_institute, it should have a colour as same as the area tagged with amenity=university

It should be like this

Actual behavior

But infact is don't have any background colour!

Links and screenshots illustrating the problem

For example , IMCAS(https://www.openstreetmap.org/way/489691058) is an institute of CAS, the main purpose of that is conduct research, not teach a lot of high school student. So I tagged it with amenity=research_institute, and because it don't open to the public, so I remove landuse=commercial .It's institute! NOT commercial area!

But When I removed this tag, I find it lost background color.

[LaoshuBaby]

I think this problem will not only happen in China, but will also in other countries which have a institute that intend to conduct research not teach student.
Thanks for you review.

[imagico]

Duplicate of #2077.