$ git clone -n https://src.fedoraproject.org/rpms/bomber.git /var/lib/mock/f40-build-795793-140319/root/chroot_tmpdir/scmroot/bomber
Cloning into '/var/lib/mock/f40-build-795793-140319/root/chroot_tmpdir/scmroot/bomber'...
$ git fetch origin 7a124f1b85a1b29989d1f34b865d03781be17a16:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/bomber
 * [new ref]         7a124f1b85a1b29989d1f34b865d03781be17a16 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7a124f1 24.02.0