PySQLite 2.x returns  instead of an empty sequence when a query produces no rows, so make sure the report module uses empty sequences. Closes #1869.
PySQLite 2.x returns  instead of an empty sequence when a query produces no rows, so make sure the report module uses empty sequences. Closes #1869.

git-svn-id: 0d96b0c1a6983ccc08b3732614f4d6bfcf9cbb42@2048 af82e41b-90c4-0310-8c96-b1721e28e2e2

rbaumg/trac,rbaumg/trac,rbaumg/trac,rbaumg/trac