Fix (incorrect?) assertion error in an Eigen matrix resize in Debug mode.
Fix (incorrect?) assertion error in an Eigen matrix resize in Debug mode.

billhoffman/drake,hanssusilo/drake,sheim/drake,crogers3/drake,scottviteri/drake,crogers3/drake,thientu/drake,hanssusilo/drake,sheim/drake,crogers3/drake,sheim/drake,thientu/drake,thientu/drake,billhoffman/drake,astrorog/drake,psiorx/drake,scottviteri/drake,thientu/drake,hanssusilo/drake,astrorog/drake,hanssusilo/drake,hanssusilo/drake,astrorog/drake,psiorx/drake,crogers3/drake,edowson/drake,scottviteri/drake,crogers3/drake,psiorx/drake,scottviteri/drake,sheim/drake,edowson/drake,thientu/drake,astrorog/drake,edowson/drake,sheim/drake,psiorx/drake,crogers3/drake,scottviteri/drake,astrorog/drake,hanssusilo/drake,hanssusilo/drake,edowson/drake,edowson/drake,thientu/drake,psiorx/drake,astrorog/drake,sheim/drake,edowson/drake,thientu/drake,psiorx/drake,astrorog/drake,billhoffman/drake,hanssusilo/drake,scottviteri/drake,billhoffman/drake,edowson/drake,crogers3/drake,sheim/drake,scottviteri/drake,billhoffman/drake,billhoffman/drake,sheim/drake,crogers3/drake,psiorx/drake,billhoffman/drake,psiorx/drake,billhoffman/drake,edowson/drake