[okular] [Bug 425188] New: Okular crashes opening PDFs from Thunderbird

[Corrado Mella]

https://bugs.kde.org/show_bug.cgi?id=425188

            Bug ID: 425188
           Summary: Okular crashes opening PDFs from Thunderbird
           Product: okular
           Version: 1.10.1
          Platform: Ubuntu Packages
                OS: Linux
            Status: REPORTED
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: okular-devel at kde.org
          Reporter: corrado.mella at gmail.com
  Target Milestone: ---

Created attachment 130753
  --> https://bugs.kde.org/attachment.cgi?id=130753&action=edit
Report from KDE Crash handler

SUMMARY
Okular crashes opening PDFs from Thunderbird.
New behaviour since upgrading Kubuntu 18.04.4 LTS to 20.02.1 LTS.

STEPS TO REPRODUCE
1. Open Thunderbird (v.68.10.0 as in current repos) and set Okular as handler
for PDF attachments.
2. Select a message with a PDF attachment to preview it in the preview pane
3. Click on the PDF attachment to open it on Okular

OBSERVED RESULT
Okular crashes with a segfault

EXPECTED RESULT
PDF opening

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 5.18.15
KDE Frameworks Version: 5.68.0
Qt Version: 5.12.8

ADDITIONAL INFORMATION
Kernel Version: 5.4.0-42-generic 64-bit

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