include setup_joins targets when scanning for FROM objects to clone

include setup_joins targets when scanning for FROM objects to clone

Fixed a two issues where combinations of ``select()`` and ``join()`` when
adapted to form a copy of the element would not completely copy the state
of all column objects associated with subqueries. A key problem this caused
is that usage of the :meth:`_sql.ClauseElement.params` method (which should
probably be moved into a legacy category as it is inefficient and error
prone) would leave copies of the old :class:`_sql.BindParameter` objects
around, leading to issues in correctly setting the parameters at execution
time.

Fixes: #7055
Change-Id: Ib822a978a99561b4402da3fb727b370f5c58210b