$ git clone -n https://src.fedoraproject.org/rpms/kf6.git /var/lib/mock/f40-build-774082-127625/root/chroot_tmpdir/scmroot/kf6
Cloning into '/var/lib/mock/f40-build-774082-127625/root/chroot_tmpdir/scmroot/kf6'...
$ git fetch origin ed460ef96eec3c83af3bcb74e35b96c2e5cc45d0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6
 * [new ref]         ed460ef96eec3c83af3bcb74e35b96c2e5cc45d0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ed460ef 5.248.0