$ git clone -n https://src.fedoraproject.org/rpms/gambas3.git /var/lib/mock/f41-build-842675-161697/root/chroot_tmpdir/scmroot/gambas3
Cloning into '/var/lib/mock/f41-build-842675-161697/root/chroot_tmpdir/scmroot/gambas3'...
$ git fetch origin 394f64e2a1f0470e416ebfe61c49300c2b312a2e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gambas3
 * [new ref]         394f64e2a1f0470e416ebfe61c49300c2b312a2e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 394f64e add openssl-devel-engine BR