$ git clone -n https://github.com/xcp-ng-rpms/stunnel /var/lib/mock/v8.3-incoming-10666-29217/root/chroot_tmpdir/scmroot/stunnel
Cloning into '/var/lib/mock/v8.3-incoming-10666-29217/root/chroot_tmpdir/scmroot/stunnel'...
$ git fetch origin a325db9383416cea841116dcf7be75d979b8beab:KOJI_FETCH_HEAD
From https://github.com/xcp-ng-rpms/stunnel
 * [new ref]         a325db9383416cea841116dcf7be75d979b8beab -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a325db9 Merge pull request #1 from xcp-ng-rpms/8.3-XS-1557