Goroutine wranglin (#7556)

* goroutine wranglin

* synchronize WebConn.WritePump

api/post.go

@@ -141,7 +141,9 @@ func saveIsPinnedPost(c *Context, w http.ResponseWriter, r *http.Request, isPinn
 			message := model.NewWebSocketEvent(model.WEBSOCKET_EVENT_POST_EDITED, "", rpost.ChannelId, "", nil)
 			message.Add("post", rpost.ToJson())
 
-			go c.App.Publish(message)
+			c.App.Go(func() {
+				c.App.Publish(message)
+			})
 
 			c.App.InvalidateCacheForChannelPosts(rpost.ChannelId)