send null on plotly_doubleclick events:

etpinard · etpinard · commit 4c5103f01e00 · 2016-02-24T13:11:31.000-05:00
- to not introduce more complexity into our
  set of event data
diff --git a/src/plots/cartesian/graph_interact.js b/src/plots/cartesian/graph_interact.js
@@ -1822,8 +1822,7 @@ function dragBox(gd, plotinfo, x, y, w, h, ns, ew) {
             }
         }
 
-        var dblClickData = gd._hoverdata ? {points: gd._hoverdata} : null;
-        gd.emit('plotly_doubleclick', dblClickData);
+        gd.emit('plotly_doubleclick', null);
         Plotly.relayout(gd, attrs);
     }
 

Original file line number	Diff line number	Diff line change
`@@ -1822,8 +1822,7 @@ function dragBox(gd, plotinfo, x, y, w, h, ns, ew) {`
`1822`	`1822`	`}`
`1823`	`1823`	`}`
`1824`	`1824`
`1825`		`- var dblClickData = gd._hoverdata ? {points: gd._hoverdata} : null;`
`1826`		`- gd.emit('plotly_doubleclick', dblClickData);`
	`1825`	`+ gd.emit('plotly_doubleclick', null);`
`1827`	`1826`	`Plotly.relayout(gd, attrs);`
`1828`	`1827`	`}`
`1829`	`1828`