feat: issue1525113 - notation to filter by logged-in user At long last (almost 18 years) this patch lands. It allows sharing of queries that want to use the currently logged in user (i.e. I or me). By replacing an id number for the user by '@current_user' in the query you can share the query for "my issues" where 'my' is the logged in user not the person who created the query. Updated the templates to use this. Updated upgrading.py for directions on using it. RDBMS and anydbm both work. Also expressions using it (e.g. not @current_user) work and are tested. Test code done. I am not sure what the change to templating.py does. I am following the original patch and have built a test case to hit the if clause. But the rest of the test doesn't actualy provide the props I need. If I knew what that code was supposed to do there I would create a real test.