My search doesn't work right anymore

The contents of the search are: {"linked_to_by": {"right":"written by"}, "sort":"name", "view":"link"}

This used to return a list of everyone who appeared in a right plus card called "written by". Now it returns every instance of that person appearing in a right plus card, so rather than be listed once a person will be listed 20 times. I haven't changed this search since I first put it up. How do I go back to the previous behavior?