Make test_lumping more robust
Make test_lumping more robust

Fixes #758

dr-nate/msmbuilder,rafwiewiora/msmbuilder,mpharrigan/mixtape,peastman/msmbuilder,mpharrigan/mixtape,rafwiewiora/msmbuilder,msultan/msmbuilder,peastman/msmbuilder,rafwiewiora/msmbuilder,msmbuilder/msmbuilder,msultan/msmbuilder,msultan/msmbuilder,mpharrigan/mixtape,peastman/msmbuilder,brookehus/msmbuilder,rafwiewiora/msmbuilder,brookehus/msmbuilder,msultan/msmbuilder,cxhernandez/msmbuilder,brookehus/msmbuilder,Eigenstate/msmbuilder,Eigenstate/msmbuilder,cxhernandez/msmbuilder,peastman/msmbuilder,msmbuilder/msmbuilder,msultan/msmbuilder,msmbuilder/msmbuilder,mpharrigan/mixtape,dr-nate/msmbuilder,Eigenstate/msmbuilder,cxhernandez/msmbuilder,msmbuilder/msmbuilder,brookehus/msmbuilder,Eigenstate/msmbuilder,msmbuilder/msmbuilder,rafwiewiora/msmbuilder,peastman/msmbuilder,cxhernandez/msmbuilder,mpharrigan/mixtape,dr-nate/msmbuilder,brookehus/msmbuilder,Eigenstate/msmbuilder,dr-nate/msmbuilder,dr-nate/msmbuilder,cxhernandez/msmbuilder