skip over legendonly traces in scatter select routine

Author: etpinard

src/traces/scatter/select.js

@@ -27,7 +27,8 @@ module.exports = function selectPoints(searchInfo, polygon) {
         y;
 
     // TODO: include lines? that would require per-segment line properties
-    if(!subtypes.hasMarkers(trace) && ! subtypes.hasText(trace)) return;
+    var hasOnlyLines = (subtypes.hasMarkers(trace) && subtypes.hasText(trace));
+    if(trace.visible !== true || hasOnlyLines) return;
 
     var opacity = Array.isArray(marker.opacity) ? 1 : marker.opacity;