Fixed #12479 -- Pass in connection argument to `as_sql` in `GeoSQLCompiler.get_columns`.  Thanks, jpwatts, for bug report and initial patch.
Fixed #12479 -- Pass in connection argument to `as_sql` in `GeoSQLCompiler.get_columns`.  Thanks, jpwatts, for bug report and initial patch.


git-svn-id: 4f9f921b081c523744c7bf24d959a0db39629563@12083 bcc190cf-cafb-0310-a4f2-bffc1f526a37

t11e/django,t11e/django,t11e/django