Merge pull request #452 from sysblok/dev

fix: revert the expunge fix

Author: alexeyqu

src/db/db_client.py

@@ -148,7 +148,6 @@ def _link_users_to_team_members(self, session):
                 if user.team_member_id != member.id:
                     user.team_member_id = member.id
         session.commit()
-        session.expunge_all()
 
     def fetch_rubrics_sheet(self, sheets_client: GoogleSheetsClient):
         session = self.Session()