Fixes some bugs in the filter messages function where subclasses of pinned nodes weren't getting filtered out correctly and UMLS nodes were being incorrectly filtered out with a valid information content.
Added a test that sends queries all the way through Fetcher.
Fixes some bugs in the filter messages function where subclasses of pinned nodes weren't getting filtered out correctly and UMLS nodes were being incorrectly filtered out with a valid information content.
Added a test that sends queries all the way through Fetcher.