610110 - the subject of a mail is displayed as gb2312-coded text instead of original character

Status: UNCONFIRMED

(Thunderbird :: Message Reader UI, defect)

Description

[wangsj.cn]

User-Agent:       Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; SE 2.X MetaSr 1.0; SE 2.X MetaSr 1.0; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022; SE 2.X MetaSr 1.0)
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; zh-CN; rv:1.9.2.12) Gecko/20101027 Thunderbird/3.1.6

the message is composed in simplified chinese. Its body can be read normally, but the subject seems like some coded text in ThunderBird 2 and 3. It is normal in outlook express and in Gmail.com. the problem is still existed if I read it in the means of Imap Account. I don't know it is a bug or a matter of the message itself.  the message as follows. 

From - Thu Nov 09 15:05:50 2006
X-Account-Key: account6
X-UIDL: GmailId10ead2974314a20c
X-Mozilla-Status: 1001
X-Mozilla-Status2: 00000000
X-Gmail-Received: 37848d50956483e1f23e6d4ff888608a4f8ba530
Delivered-To: [e-mail]
Received: by 10.82.150.7 with SMTP id x7cs82241bud;
        Fri, 3 Nov 2006 01:32:25 -0800 (PST)
Received: by 10.35.113.12 with SMTP id q12mr2896988pym.1162546345143;
        Fri, 03 Nov 2006 01:32:25 -0800 (PST)
Return-Path: <[e-mail]>
Received: from seu.edu.cn (idc15.seu.edu.cn [58.192.112.15])
        by mx.google.com with SMTP id 12si2196268nzn.2006.11.03.01.30.23;
        Fri, 03 Nov 2006 01:32:25 -0800 (PST)
Received-SPF: pass (google.com: best guess record for domain of [e-mail] designates 58.192.112.15 as permitted sender)
Received: (qmail 4171 invoked from network); 3 Nov 2006 09:28:45 -0000
Received: from unknown (HELO abcseu) (58.192.112.16)
  by idc15.seu.edu.cn with SMTP; 3 Nov 2006 09:28:45 -0000
Message-ID: <002601c6ff2b$10320cf0$b31677ca@abcseu>
From: "ABC" <[e-mail]>
To: <[e-mail]>
Subject: =?gb2312?B?Rnc6ILXay8S0+tLGtq/NqNDFz7XNs8irx/Kx6te8u6+5pNf3vavIq8Pm
	1bk=?=
	=?gb2312?B?v6o=?=
Date: Fri, 3 Nov 2006 17:33:04 +0800
MIME-Version: 1.0
Content-Type: text/plain;
	charset=gb2312
Content-Transfer-Encoding: base64
X-Priority: 1
X-MSMail-Priority: High
X-Mailer: Microsoft Outlook Express 6.00.2800.1437
X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1441
X-imss-version: 2.43
X-imss-result: Passed
X-imss-scores: Clean:0.97766 C:2 M:3 S:5 R:5
X-imss-settings: Baseline:1 C:1 M:1 S:1 R:1 (0.0000 0.0000)

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Reproducible: Always

Steps to Reproduce:
1.save the message as *.eml
2.open it in outlook express, it is displayed normally
3.open it in TB, it is not normal
Actual Results:  
=?gb2312?B?Rnc6ILXay8S0+tLGtq/NqNDFz7XNs8irx/Kx6te8u6+5pNf3vavIq8Pm 1bk=?= 开

Expected Results:  
Fw: 第四代移动通信系统全球标准化工作将全面展开

Comment 1

[WADA:World Anti-bad-Duping Agency]

Subject header of mail you pasted.
> Subject: =?gb2312?B?Rnc6ILXay8S0+tLGtq/NqNDFz7XNs8irx/Kx6te8u6+5pNf3vavIq8Pm
>     1bk=?=
>     =?gb2312?B?v6o=?=

Your actual result and expected result.
> Actual Results:  
> =?gb2312?B?Rnc6ILXay8S0+tLGtq/NqNDFz7XNs8irx/Kx6te8u6+5pNf3vavIq8Pm 1bk=?= 开
> Expected Results:  
> Fw: 第四代移动通信系统全球标准化工作将全面展开

How RFC compliant mailer like Tb can show the Subject header as you want, even though the mail header is split at wrong position if mail sender's expectation was header like next?
> Subject: =?gb2312?B?Rnc6ILXay8S0+tLGtq/NqNDFz7XNs8irx/Kx6te8u6+5pNf3vavIq8Pm1bk=?=
>     =?gb2312?B?v6o=?=
What RFC's what statements is your evidence/base of your bug open?
(bug open at B.M.O is : you claim that it's Tb's bug == Tb's flaw in Tb's code.)
Please note that here is B.M.O for developers, never support forum.