Fixed webpage pending

Close #1169

app/js/directives.js

@@ -296,7 +296,11 @@ angular.module('myApp.directives', ['myApp.filters'])
 
       $scope.$on('message_edit', function (e, data) {
         if (data.mid == message.mid) {
-          updateMessageBody($scope, element, message);
+          if (data.justMedia) {
+            updateMessageMedia($scope, element, message);
+          } else {
+            updateMessageBody($scope, element, message);
+          }
         }
       });
     }

app/js/messages_manager.js

@@ -3081,6 +3081,12 @@ angular.module('myApp.services')
           _: 'messageMediaWebPage',
           webpage: AppWebPagesManager.wrapForHistory(eventData.id)
         };
+        $rootScope.$broadcast('message_edit', {
+          peerID: getMessagePeer(historyMessage),
+          id: historyMessage.id,
+          mid: msgID,
+          justMedia: true
+        });
       }
     })
   });