608514 - one extra space character added for one or more space character at beginning of line

Status: RESOLVED INVALID

(MailNews Core :: Composition, defect)

Description

[Oliver Seeliger]

User-Agent:       Opera/9.80 (Windows NT 6.0; U; de) Presto/2.6.30 Version/10.63
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 6.0; de; rv:1.9.2.12) Gecko/20101027 Lightning/1.0b2 Thunderbird/3.1.6

When composing emails in plain text format and having one (or more) space character(s) (blanks) at the beginning of the line, then, after sending the email one extra space character is added to the beginning of every line. One can see this by viewing the mail's source in the "Sent" folder; and, of course, viewing the received email's source.

Reproducible: Always

Steps to Reproduce:
1. Compose an email in plain text format
2. add a space character the beginning of a line
3. send the email
4. view the sent mail's source / view received email's source


Actual Results:  
one extra space character has being added to every line that begins with a space character

Expected Results:  
no extra space character to the particular lines

I'm not sure (because I'm not that familiar with email format etc.) if this problem has something to do with the selected encoding or some other settings. Therefor I add the headers that were generated by Thunderbird when I sent the test emails:

Message-ID: <[e-mail]>
Date: Sat, 30 Oct 2010 13:52:58 +0200
From: [e-mail]
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.0; de; rv:1.9.2.12) Gecko/20101027 Lightning/1.0b2 Thunderbird/3.1.6
MIME-Version: 1.0
To: "[e-mail]" <[e-mail]>
Subject: test
Content-Type: text/plain; charset=ISO-8859-15; format=flowed
Content-Transfer-Encoding: 7bit

Comment 1

[Ludovic Hirlimann [:Usul]]

confirming on Mozilla/5.0 (Macintosh; Intel Mac OS X 10.5; rv:2.0b8pre) Gecko/20101104 Thunderbird/3.3a1pre

Comment 2

[Karsten Düsterloh]

There's no bug here, as long as you don't see format=flowed as one. ;-)
With format=flowed, lines starting with a space need to add a second space which will be removed when displaying as format=flowed.
See RfC 2646, especially chapter "4.4. Space-Stuffing".