[kmail2] [Bug 422659] New: quoted multipart MIME message incorrectly displayed

[Jiaxin Han]

https://bugs.kde.org/show_bug.cgi?id=422659

            Bug ID: 422659
           Summary: quoted multipart MIME message incorrectly displayed
           Product: kmail2
           Version: unspecified
          Platform: Other
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: composer
          Assignee: kdepim-bugs at kde.org
          Reporter: hanjiaxin at gmail.com
  Target Milestone: ---

SUMMARY
When replying to certain messages the quoted texts cannot be displayed
correctly in composer. After checking a few messages I find this is happening
with multipart MIME message at least. Even though the composer displays the
quoted message as a mess, if I still send the reply the received message can
still be displayed properly.

STEPS TO REPRODUCE
1. click "reply" to a multipart message in MIME format


OBSERVED RESULT

the quoted message collapses to a single line and overlapping each other.
completely not readable. See the red part in the attached screenshot.

EXPECTED RESULT

quoted message displayed properly.

SOFTWARE/OS VERSIONS

Linux/KDE Plasma: Kubuntu 18.04
(available in About System)
KDE Plasma Version: 5.12.9
KDE Frameworks Version: 5.44.0
Qt Version: 5.9.5
Kernel: 5.3.0-53-generic

ADDITIONAL INFORMATION

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