From 2b0b929aa2af4caf65d6cdee84e83130dad29006 Mon Sep 17 00:00:00 2001
From: Andrew Chen <achen.code@gmail.com>
Date: Fri, 7 Sep 2012 11:02:30 -0700
Subject: [PATCH] Add references and in-reply-to for forwarded messages.

---
 src/com/fsck/k9/activity/MessageCompose.java | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/src/com/fsck/k9/activity/MessageCompose.java b/src/com/fsck/k9/activity/MessageCompose.java
index 91de68e19..3d177de80 100644
--- a/src/com/fsck/k9/activity/MessageCompose.java
+++ b/src/com/fsck/k9/activity/MessageCompose.java
@@ -2528,6 +2528,19 @@ public class MessageCompose extends K9Activity implements OnClickListener, OnFoc
         }
         mQuoteStyle = QuoteStyle.HEADER;
 
+        // "Be Like Thunderbird" - on forwarded messages, set the message ID
+        // of the forwarded message in the references and the reply to.  TB
+        // only includes ID of the message being forwarded in the reference,
+        // even if there are multiple references.
+        if (!StringUtils.isNullOrEmpty(message.getMessageId())) {
+            mInReplyTo = message.getMessageId();
+            mReferences = mInReplyTo;
+        } else {
+            if (K9.DEBUG) {
+                Log.d(K9.LOG_TAG, "could not get Message-ID.");
+            }
+        }
+
         // Quote the message and setup the UI.
         populateUIWithQuotedMessage(true);