$ git clone -n https://src.fedoraproject.org/rpms/chkconfig.git /var/lib/mock/f40-build-2261952-54460/root/chroot_tmpdir/scmroot/chkconfig
Cloning into '/var/lib/mock/f40-build-2261952-54460/root/chroot_tmpdir/scmroot/chkconfig'...
$ git fetch origin 8a4a5b5f3f54756e5ea9187df7a01874cb76c4a6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/chkconfig
 * [new ref]         8a4a5b5f3f54756e5ea9187df7a01874cb76c4a6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8a4a5b5 1.26