When deploying devstack in a stable branch, the master branch is
available locally only in a CI environment where Zuul prepares all
available branches. For a non-CI deployment we need to stick to using
the remote branch as was the case before [0].
While the situation on the master branch isn't really broken, we apply
the fix here anyway so that future stable branches are created in a
working state.
[0] I5d42ac6b54bf20804d7e5faa39d1289102318b64
Closes-Bug: #1956219
Signed-off-by: Dr. Jens Harbott <harbott@osism.tech>
Change-Id: Ib7719cb2d48b34db70f885e0afe77d904abba3b5
2ef4a4c851