$ git clone -n https://src.fedoraproject.org/rpms/kernel-tools.git /var/lib/mock/f40-build-773173-126850/root/chroot_tmpdir/scmroot/kernel-tools
Cloning into '/var/lib/mock/f40-build-773173-126850/root/chroot_tmpdir/scmroot/kernel-tools'...
$ git fetch origin 163ed6bb4c1aed23ff3ff682400921a8d6abe6b7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kernel-tools
 * [new ref]         163ed6bb4c1aed23ff3ff682400921a8d6abe6b7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 163ed6b Linux v6.7