$ git clone -n https://src.fedoraproject.org/rpms/libsurvive.git /var/lib/mock/f42-build-3406873-45143/root/chroot_tmpdir/scmroot/libsurvive
Cloning into '/var/lib/mock/f42-build-3406873-45143/root/chroot_tmpdir/scmroot/libsurvive'...
$ git fetch origin 4fe270482fd1fc1fe28f82c4c9b46727ff3adf78:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libsurvive
 * [new ref]         4fe270482fd1fc1fe28f82c4c9b46727ff3adf78 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4fe2704 Merge #1 `Update snapshot, add cnkalman/cnmatrix headers`