[okular] [Bug 424670] New: mousewheel scroll at end of document jumps incorrectly

[bugzilla_noreply at kde.org]

https://bugs.kde.org/show_bug.cgi?id=424670

            Bug ID: 424670
           Summary: mousewheel scroll at end of document jumps incorrectly
           Product: okular
           Version: 1.9.3
          Platform: Other
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: okular-devel at kde.org
          Reporter: kdebugs at caseyconnor.org
  Target Milestone: ---

Created attachment 130402
  --> https://bugs.kde.org/attachment.cgi?id=130402&action=edit
demonstration video

When viewing a >1 page document which does not fit vertically on the screen,
but does fit horizontally on the screen, in view mode "facing pages", okular
can not scroll properly to the end of the document: when the mousewheel scrolls
down, it jumps back to the top of the second-to-last page (repeating this jerky
movement as long as the wheel is scrolling).

Demonstration video: http://caseyconnor.org/pub/bugs/okular_scrollwheel.mkv

Linux/KDE Plasma:
x86_64 GNU/Linux
KDE Plasma Version:  5.18.5
KDE Frameworks Version: 5.68.0
Qt Version: 5.12.8
Linux 5.4.0-42-generic #46-Ubuntu SMP Fri Jul 10 00:24:02 UTC 2020 x86_64
x86_64 
Kubuntu 20.04.1 LTS

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