From e0d73a64a744c24a97f2e970e67b0935944190b3 Mon Sep 17 00:00:00 2001
From: Nicolas Stepien <stepien.nicolas@gmail.com>
Date: Wed, 5 Sep 2012 03:33:51 +0200
Subject: [PATCH] Fix error where we could have parsed the same post more than
 once because of multiple request callbacks.

---
 4chan_x.user.js | 18 ++++++++++++------
 script.coffee   | 17 ++++++++++++-----
 2 files changed, 24 insertions(+), 11 deletions(-)

diff --git a/4chan_x.user.js b/4chan_x.user.js
index b8777fa53..594cbcb84 100644
--- a/4chan_x.user.js
+++ b/4chan_x.user.js
@@ -1404,8 +1404,12 @@
       link.nextSibling.href = "/" + board + "/res/" + threadID + "#q" + postID;
       inBoard = g.boards[board] || new Board(board);
       inThread = g.threads["" + board + "." + threadID] || new Thread(threadID, inBoard);
-      post = new Post(pc, inThread, inBoard);
-      Main.callbackNodes(Post, [post]);
+      if (!(post = g.posts["" + board + "." + postID])) {
+        post = new Post(postContainer, thread, board, {
+          isArchived: true
+        });
+        Main.callbackNodes(Post, [post]);
+      }
       if (!root.parentNode) {
         return;
       }
@@ -1482,10 +1486,12 @@
       });
       board = g.boards[board] || new Board(board);
       thread = g.threads["" + board + "." + threadID] || new Thread(threadID, board);
-      post = new Post(postContainer, thread, board, {
-        isArchived: true
-      });
-      Main.callbackNodes(Post, [post]);
+      if (!(post = g.posts["" + board + "." + postID])) {
+        post = new Post(postContainer, thread, board, {
+          isArchived: true
+        });
+        Main.callbackNodes(Post, [post]);
+      }
       if (!root.parentNode) {
         return;
       }
diff --git a/script.coffee b/script.coffee
index d99f05cd0..540da4509 100644
--- a/script.coffee
+++ b/script.coffee
@@ -1194,8 +1194,12 @@ Get =
       new Board board
     inThread = g.threads["#{board}.#{threadID}"] or
       new Thread threadID, inBoard
-    post = new Post pc, inThread, inBoard
-    Main.callbackNodes Post, [post]
+    # In case of multiple callbacks for the same request,
+    # don't parse the same original post more than once.
+    unless post = g.posts["#{board}.#{postID}"]
+      post = new Post postContainer, thread, board,
+        isArchived: true
+      Main.callbackNodes Post, [post]
 
     # Stop here if the container has been removed while loading.
     return unless root.parentNode
@@ -1283,9 +1287,12 @@ Get =
       new Board board
     thread = g.threads["#{board}.#{threadID}"] or
       new Thread threadID, board
-    post = new Post postContainer, thread, board,
-      isArchived: true
-    Main.callbackNodes Post, [post]
+    # In case of multiple callbacks for the same request,
+    # don't parse the same original post more than once.
+    unless post = g.posts["#{board}.#{postID}"]
+      post = new Post postContainer, thread, board,
+        isArchived: true
+      Main.callbackNodes Post, [post]
 
     # Stop here if the container has been removed while loading.
     return unless root.parentNode