$ git clone -n https://src.fedoraproject.org/rpms/stunnel.git /var/lib/mock/f41-build-side-1-2907865-34729/root/chroot_tmpdir/scmroot/stunnel
Cloning into '/var/lib/mock/f41-build-side-1-2907865-34729/root/chroot_tmpdir/scmroot/stunnel'...
$ git fetch origin 7604d967b23c0357ffc25e36a7127285d9afa86c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/stunnel
 * [new ref]         7604d967b23c0357ffc25e36a7127285d9afa86c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7604d96 New upstream release 5.73