It seems that the IoT fix was not limited to the IoT
subvariant only, which caused wierd behaviour when
the version was set to Rawhide when it should not be.
This fixes it.
IoT created a branch that's basically Rawhide but is versioned
33. This causes the release_identification tests to fail. I don't
think they'll change this on their end, so let's just have the
test cope with it and expect branches versioned as the Rawhide
release number to behave as Rawhide does here.
Signed-off-by: Adam Williamson <awilliam@redhat.com>