$ git clone -n https://src.fedoraproject.org/rpms/kernel-headers.git /var/lib/mock/f40-build-2199718-51751/root/chroot_tmpdir/scmroot/kernel-headers
Cloning into '/var/lib/mock/f40-build-2199718-51751/root/chroot_tmpdir/scmroot/kernel-headers'...
$ git fetch origin 33424703fc035345bdfdfab5e11124d2caf0fc64:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kernel-headers
 * [new ref]         33424703fc035345bdfdfab5e11124d2caf0fc64 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3342470 Linux v6.7-rc8