another bugfix because of array shapes
another bugfix because of array shapes

vlas-sokolov/pyspeckit,allisony/pyspeckit,keflavich/pyspeckit,keflavich/pyspeckit,low-sky/pyspeckit,jpinedaf/pyspeckit,pyspeckit/pyspeckit,mikelum/pyspeckit,jpinedaf/pyspeckit,allisony/pyspeckit,mikelum/pyspeckit,e-koch/pyspeckit,pyspeckit/pyspeckit,vlas-sokolov/pyspeckit,e-koch/pyspeckit,low-sky/pyspeckit