Ticket #29268: 29268.patch

src/wp-includes/js/mce-view.js

@@ -561 +561 @@
                         setNodes: function () {
                                 if ( this.parsed ) {
                                         this.setIframes( this.parsed );
+                                } else if ( this.parsed === false ) {
+                                        this.setContent( '<p>' + this.original + '</p>', 'replace' );
                                 }
                         },
 
@@ -574 +576 @@
                                                 shortcode: this.shortcode.string()
                                         }
                                 } )
+                                .always( function() {
+                                        self.parsed = false;
+                                } )
                                 .done( function( response ) {
                                         if ( response ) {
                                                 self.parsed = response;