$ git clone -n https://src.fedoraproject.org/rpms/dispenso.git /var/lib/mock/f40-build-2244813-53726/root/chroot_tmpdir/scmroot/dispenso
Cloning into '/var/lib/mock/f40-build-2244813-53726/root/chroot_tmpdir/scmroot/dispenso'...
$ git fetch origin 6e8357b8afc6b3cab2a0e3c83a0aee230225e7b4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dispenso
 * [new ref]         6e8357b8afc6b3cab2a0e3c83a0aee230225e7b4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6e8357b Update to 1.2.0