$ git clone -n https://src.fedoraproject.org/rpms/kpmcore.git /var/lib/mock/f40-build-2067701-49291/root/chroot_tmpdir/scmroot/kpmcore
Cloning into '/var/lib/mock/f40-build-2067701-49291/root/chroot_tmpdir/scmroot/kpmcore'...
$ git fetch origin 5c78563e6c941f2f3b021470fd9db397d6e00926:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kpmcore
 * [new ref]         5c78563e6c941f2f3b021470fd9db397d6e00926 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5c78563 24.01.80