When the supplied git revision is not a tag or remote branch checkout
the revision locally.
Change-Id: I42bdd4e089036d7520d63067862b0be7245c998f
Reviewed-on: https://review.openstack.org/17568
Reviewed-by: James E. Blair <corvus@inaugust.com>
Reviewed-by: Paul Belanger <paul.belanger@polybeacon.com>
Approved: Clark Boylan <clark.boylan@gmail.com>
Reviewed-by: Clark Boylan <clark.boylan@gmail.com>
Tested-by: Jenkins
3737cccbc1