450051 - Rewrap incorrectly removes hard line breaks when replying to format=flowed messages

Status: RESOLVED DUPLICATE of bug 220575

(Thunderbird :: Message Compose Window, defect)

Description

[Sandy Scott]

User-Agent:       Opera/9.51 (Windows NT 5.1; U; en)
Build Identifier: 2.0.0.16+nobinonly-0ubuntu0.8.04.1

Was testing the behaviour of Thurderbird's line wrapping for an email parsing project of mine:

test message*:





Reproducible: Always

Steps to Reproduce:
1. Set Thuderbird to send a text only messages

2. send this message to yourself:
66
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa a
67
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa a
68
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa a
69
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa a
70
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa a
71
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa a
72
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa a
73
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa a
74
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa a
75
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa a
76
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa a
77
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa a
78
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa a
79
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa a
80
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa a
end of test message

Note: if this isn't processed correctly the format should be: a number (n) on it's own line, then n-2 a's, then a space then an 'a', all on the same line

2. reply to it

3. Hit Edit-Rewrap
Actual Results:  
The line breaks before the numbers where the line length is above are certain number are removed.

Expected Results:  
They should not be removed - they were hard line breaks in the orginal message, which should be respected.  The original message was sent in with format=flowed (default for when sending text-only messages), so the line break information is not ambiguous, so can (and should) be recovered correctly

Intriguingly, more changes occur if you Rewrap again, this seems wrong to me that anything happens - surely after a message has been rewrapped, no further change should be necessary?

My Windows installation (version 2.0.0.16 (20080708)) shows the same bug.