call Session() to prevent surprises if/when we use attributes that aren't reflected by sessionmaker
call Session() to prevent surprises if/when we use attributes that aren't reflected by sessionmaker

camptocamp/formalchemy,abourget/formalchemy-abourget,camptocamp/formalchemy,FormAlchemy/formalchemy,FormAlchemy/formalchemy,camptocamp/formalchemy,camptocamp/formalchemy,FormAlchemy/formalchemy,FormAlchemy/formalchemy