$ git clone -n https://github.com/xcp-ng-rpms/stunnel.git /var/lib/mock/v8.3-u-pcoval2-10607-29161/root/chroot_tmpdir/scmroot/stunnel
Cloning into '/var/lib/mock/v8.3-u-pcoval2-10607-29161/root/chroot_tmpdir/scmroot/stunnel'...
$ git fetch origin a80ad755923e35da1b5cc79e9dbdbb4bf91cf209:KOJI_FETCH_HEAD
From https://github.com/xcp-ng-rpms/stunnel
 * [new ref]         a80ad755923e35da1b5cc79e9dbdbb4bf91cf209 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a80ad75 bump release for test build