$ git clone -n https://src.fedoraproject.org/rpms/kinfocenter.git /var/lib/mock/f40-build-797046-141053/root/chroot_tmpdir/scmroot/kinfocenter
Cloning into '/var/lib/mock/f40-build-797046-141053/root/chroot_tmpdir/scmroot/kinfocenter'...
$ git fetch origin 3a7d53ff886d7986a3731559cecead82222c95a6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kinfocenter
 * [new ref]         3a7d53ff886d7986a3731559cecead82222c95a6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3a7d53f 6.0.2