Mark some constraints as `DEFERRABLE INITIALLY DEFERRED` again
Mark some constraints as `DEFERRABLE INITIALLY DEFERRED` again

This was the default before special parameters have been introduced in
the ddl

lukasjuhrich/pycroft,agdsn/pycroft,agdsn/pycroft,lukasjuhrich/pycroft,agdsn/pycroft,agdsn/pycroft,agdsn/pycroft,lukasjuhrich/pycroft,lukasjuhrich/pycroft