Fix race condition in Boards/threads loading?

Author: nark

Wired/Boards/Board.swift

@@ -44,6 +44,6 @@ public class Board: ConnectionObject {
     public func addThread(_ thread:BoardThread) {
         self.threads.append(thread)
 
-        self.threadsByUUID[thread.uuid] = thread
+        //self.threadsByUUID[thread.uuid] = thread
     }
 }

Wired/Boards/BoardsController.swift

@@ -45,7 +45,6 @@ public class BoardsController: ConnectionObject, ConnectionDelegate {
 
         queue.async(flags: .barrier, execute: {
             board.threads = []
-            board.threadsByUUID = [String:BoardThread]()
 
         })
 

Wired/Boards/ThreadsViewController.swift

@@ -46,14 +46,17 @@ class ThreadsViewController: ConnectionViewController, NSTableViewDelegate, NSTa
                 }
 
                 if b != nil {
-                    self.boardsController.loadThreads(forBoard: b)
+                    if b.threads.count == 0 {
+                        self.boardsController.loadThreads(forBoard: b)
+                    }
 
                 } else {
                     self.postsViewController.board = nil
                     self.postsViewController.thread = nil
 
-                    self.threadsTableView.reloadData()
                 }
+                
+                self.threadsTableView.reloadData()
             }
         }
     }