$ git clone -n https://src.fedoraproject.org/rpms/kf6-kcmutils.git /var/lib/mock/f40-build-775140-128024/root/chroot_tmpdir/scmroot/kf6-kcmutils
Cloning into '/var/lib/mock/f40-build-775140-128024/root/chroot_tmpdir/scmroot/kf6-kcmutils'...
$ git fetch origin 84c4e9a12aba0d4a52ca0b879169e2ce20b72c99:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-kcmutils
 * [new ref]         84c4e9a12aba0d4a52ca0b879169e2ce20b72c99 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 84c4e9a 5.248.0