By default git only fetches references under the refs/heads/ tree,
this patch adds support to kas to enable you to specify references
outside of the ref/heads tree. This is useful as it allows you to
use uncommitted gerrit patchsets, Gitlab merge requests or github
pull requests that live under refs/changes/, refs/merge-requests
and refs/pull as the reference for a repo allowing the use of
in development changes. When a refsepc is defined that starts
with refs/ an additional git fetch operation is preformed on the
repo to explicitly fetch the reference given so it can be checked
out for use.
Signed-off-by: Drew Reed <drew.reed@arm.com>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
