[kmail2] [Bug 403459] New: kmail2 shows black little block above header of message

[Freek de Kruijf]

https://bugs.kde.org/show_bug.cgi?id=403459

            Bug ID: 403459
           Summary: kmail2 shows black little block above header of
                    message
           Product: kmail2
           Version: unspecified
          Platform: Other
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: misc
          Assignee: kdepim-bugs at kde.org
          Reporter: freekdekruijf at kde.nl
  Target Milestone: ---

Created attachment 117590
  --> https://bugs.kde.org/attachment.cgi?id=117590&action=edit
screendump of kmail2 window showing black box

SUMMARY
kmail2 5.10 shows black little block above header of message

STEPS TO REPRODUCE
1. select folder in account (may contain no message)
2. observe sub window for message
3. 

OBSERVED RESULT
the sub window for the message shows a little black box at the top of the sub
window

EXPECTED RESULT
no black box

SOFTWARE/OS VERSIONS
Windows: 
MacOS: 
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 5.10.0
KDE Frameworks Version: 5.53.0
Qt Version: 5.12.0

ADDITIONAL INFORMATION

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