fix vanishing titles issue

Author: alexcjohnson

src/components/titles/index.js

@@ -192,8 +192,7 @@ Titles.draw = function(gd, titleClass, options) {
         opacity = 0;
         isplaceholder = true;
         txt = placeholderText;
-        fullLayout._infolayer.select('.' + titleClass)
-            .attr({'data-unformatted': txt})
+        el.attr({'data-unformatted': txt})
             .text(txt)
             .on('mouseover.opacity', function() {
                 d3.select(this).transition()
@@ -207,6 +206,7 @@ Titles.draw = function(gd, titleClass, options) {
 
     if(gd._context.editable) {
         if(!txt) setPlaceholder();
+        else el.on('.opacity', null);
 
         el.call(svgTextUtils.makeEditable)
             .on('edit', function(text) {