[Bug 312025] New: HTML e-mail contents is broken after Mozilla Thunderbird's reply

[Silver Salonen]

https://bugs.kde.org/show_bug.cgi?id=312025

            Bug ID: 312025
          Severity: normal
           Version: 4.9.4
          Priority: NOR
          Assignee: kdepim-bugs at kde.org
           Summary: HTML e-mail contents is broken after Mozilla
                    Thunderbird's reply
    Classification: Unclassified
                OS: Linux
          Reporter: silver.salonen at gmail.com
          Hardware: openSUSE RPMs
            Status: UNCONFIRMED
         Component: composer
           Product: kmail2

When I send some long line from KMail and reply comes from Thunderbird, the
line is split into multiple lines although there is no character limit for line
length.
Replies from eg. MS Outlook look fine though. The long line looks OK in both
Thunderbird message viewer and reply composer.
But I guess there is something that is inserted in the HTML-contents as it's
broken every time after getting a reply from Thunderbird.

Example, I copy-pasted from this very page one line and replied to it from
Thunderbird.
Origitanl contents:
=====
If your bug isn't there, search KDE Bugtracking System by entering a few key
words having to do with your bug in this box. For example: pop3 mail or copy
paste. The results will appear above.

--
Silver
=====

Contents after Mozilla Thunderbird's reply:
=====

On 21.12.2012 10:42, Silver Salonen wrote:
If your bug isn't there, search KDE
          Bugtracking System by entering a few key words having to do
          with your bug in this box. For example: pop3 mail or copy paste. The
          results will appear above.

--
Silver
=====

Reproducible: Always

Steps to Reproduce:
1. Write a HTML-email from KMail
2. Open that e-mail in Thunderbird and reply to it
Actual Results:  
Long lines get split up

Expected Results:  
Contents should stay as it was originally.

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