[okular] [Bug 457494] New: Line dash pattern instructions containing many entries are not shown correctly.

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https://bugs.kde.org/show_bug.cgi?id=457494

            Bug ID: 457494
           Summary: Line dash pattern instructions containing many entries
                    are not shown correctly.
           Product: okular
           Version: 21.12.3
          Platform: Ubuntu Packages
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: PDF backend
          Assignee: okular-devel at kde.org
          Reporter: t_leitner at gmx.at
  Target Milestone: ---

Created attachment 151119
  --> https://bugs.kde.org/attachment.cgi?id=151119&action=edit
The PDF that display wrongly in okular but fine in e.g. evince

SUMMARY

Line dash patterns (PDF 1.7 spec section 8.4.3.6) contain a dash array and a
phase. It seems that okular has problems if the dash array contains too many
entries. And from looking at the result it seems to just use a certain number
of entries and cuts the rest off.

Evince and acroread 9 on Linux work just fine, displaying the PDF in question
like the reference image (except for the color).

STEPS TO REPRODUCE
1. Load the attached PDF in okular.

OBSERVED RESULT

The QRCode is invalid and is not the same as the reference image.

EXPECTED RESULT

The QRCode should be equal to the one in the reference image.

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Kubuntu 22.04
(available in About System)
KDE Plasma Version: 5.24.4
KDE Frameworks Version: 5.92.0
Qt Version: 5.15.3

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