Additional Django 4.2 compatibility fix

When building python-django-tagging against Django 4.2, many of the tests fail due to a FullResultSet exception. This exception type was added in 4.2 and is raised whenever a query statement will extract all entries in a database table. The function that runs into this error should handle this case, so I created a patch to manage it properly while still being backwards compatible. This change isn't necessary for the current Django version in sid (3.2) but will be once the transition to 4.2 happens.