Merge branch 'filter-bug-fix' into 'master'

Fix bug with JS error from dropdowns in filter area

Fixes:

![consoleerror](/uploads/0fa19a943050baac855c9e6f896ea941/consoleerror.png)

This error is not a logged issue yet.

Error when turbolinks fetches a new page, `setup()` was not run. 

Signed-off-by: Jacob Schatz <jschatz@gitlab.com>

cc @iamphill @alfredo1 

See merge request !3216