273096 - Folded headers using tab are not unfolded properly

Status: RESOLVED DUPLICATE of bug 271312

(Thunderbird :: General, defect)

Description

[Jon Miles]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-GB; rv:1.7.5) Gecko/20041110 Firefox/1.0
Build Identifier: version 1.0RC1 (20041201)

When displaying a very long Subject: (perhaps others) header that has been
folded using \n\t (\n<space> seems fine), Thunderbird includes the tab which
should have been removed by the unfolding process. The problem is visible in the
message lists as a black box, preview pane and e-mail window as jumped text.

Reproducible: Always
Steps to Reproduce:
1. Send yourself an e-mail manually for best effect...

telnet mail.somewhere.com 25

220 git.zetnet.co.uk ESMTP Exim 3.36 #1 Sat, 04 Dec 2004 09:11:44 +0000
Mail from:[e-mail]
250 <[e-mail]> is syntactically correct
rcpt to:[e-mail]
250 <[e-mail]> is syntactically correct
data
354 Enter message, ending with "." on a line by itself
Subject: This is a very long subject line which should hopefully demonstrate
<press-tab>that Thunderbird includes the tab character when unfolding the
subject line

test
.

3. Wait for e-mail to appear in Thunderbird and observe problem.
Actual Results:  
Checked for new mail, observed problem detailed above.

Expected Results:  
Tab character should be replaced with a space character

Note that Thunderbird itself folds headers using \n<space>, but other mail
clients and most mailing list software I have seen use \n\t. Would be much nicer
to see the \t converted to space when Subject: header is unfolded.

Comment 1

[Mike Cowperthwaite]

*** This bug has been marked as a duplicate of 271312 ***