$ git clone -n https://src.fedoraproject.org/rpms/toolbox.git /var/lib/mock/f40-build-2626379-65264/root/chroot_tmpdir/scmroot/toolbox
Cloning into '/var/lib/mock/f40-build-2626379-65264/root/chroot_tmpdir/scmroot/toolbox'...
$ git fetch origin fd1d76c6019d57ce8c94983f05465b474b9826d1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/toolbox
 * [new ref]         fd1d76c6019d57ce8c94983f05465b474b9826d1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fd1d76c Specify the golang versions for RHEL 9 and 10