$ git clone -n https://src.fedoraproject.org/rpms/dmidecode.git /var/lib/mock/f42-build-867424-175505/root/chroot_tmpdir/scmroot/dmidecode
Cloning into '/var/lib/mock/f42-build-867424-175505/root/chroot_tmpdir/scmroot/dmidecode'...
$ git fetch origin 86d98a8093b080a99fd122c8a1e10ba25628c9e4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dmidecode
 * [new ref]         86d98a8093b080a99fd122c8a1e10ba25628c9e4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 86d98a8 Rebuilt for the bin-sbin merge (2nd attempt)