-                    if(documentElement.DocumentTextElement.isContentContainer(mutation.target) && mutation.target.data === '')
-                        mutation.target.data = utils.unicode.ZWS;
+                    if(documentElement.DocumentTextElement.isContentContainer(mutation.target)) {
+                        if(mutation.target.data === '')
+                            mutation.target.data = utils.unicode.ZWS;
+                        canvas.publisher('contentChanged');
+                    }