[fix bug 1083736] Add emit with query on load.

This should fix bug [1083736](https://bugzilla.mozilla.org/show_bug.cgi?id=1083736).

I'm fairly new to angular so if this is bonkers in some way don't hesitate to comment.

need to support removing the filter from the ``$location`` in this funciton.  Something like ``$location.search(getFieldWithPrefix(field), null);``