Adjust the release_id that is checked in PDC
From what we gathered from the logs and database, it looks like we need
to check <short>-<version>-<release_type> when that release_type is not
"ga", as this seems to be the "release_id" that PDC uses in the
release_release table.
Signed-off-by: Pierre-Yves Chibon <pingou@pingoured.fr>