Ignore resnapping for scatter-fancy

Author: dy

src/traces/scattergl/convert.js

@@ -593,7 +593,15 @@ proto.updateFancy = function(options) {
             }
         }
 
-        this.fancyScatter.update();
+        //prevent scatter from resnapping points
+        if (selIds) {
+            this.scatter.options.positions = null
+            this.fancyScatter.update();
+            this.scatter.options.positions = positions
+        }
+        else {
+            this.fancyScatter.update();
+        }
     }
     else {
         this.fancyScatter.clear();