Comment 8 for bug 1625878

Reviewed: https://review.openstack.org/381930
Committed: https://git.openstack.org/cgit/openstack/git-upstream/commit/?id=f243bd6355754a0e4c77eb8a6a4abeb70d1a8b48
Submitter: Jenkins
Branch: master

commit f243bd6355754a0e4c77eb8a6a4abeb70d1a8b48
Author: Darragh Bailey <email address hidden>
Date: Tue Oct 4 14:43:29 2016 +0100

    Use tag for import branch naming when given

    When importing using a tag for the upstream point to use, use the given
    tag provided instead of running describe against it again as this might
    result in the wrong tag being returned.

    The documentation for git describe states that when provided a tag,
    `git describe <tag>` will simply return the given tag, however
    when it is not an annotated tag it is possible for there to be multiple
    tags on the same commit and `git describe` may return any of them
    instead of the originally given tag. Explicitly add a check to see if
    the commit(ish) reference to import from is a tag and skip calling `git
    describe` in such a case.

    Change-Id: I7c6c3c2eb138089ccbc13d773da3d8a4a8efe673
    Related-Bug: #1625878