https://bugs.kde.org/show_bug.cgi?id=503607

            Bug ID: 503607
           Summary: Middle click zooming in and out ramps up ram usage and
                    makes system laggy
    Classification: Applications
           Product: okular
           Version: 25.04.0
          Platform: Arch Linux
                OS: Linux
            Status: REPORTED
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: okular-devel@kde.org
          Reporter: mikefra...@gmail.com
  Target Milestone: ---

Created attachment 180844
  --> https://bugs.kde.org/attachment.cgi?id=180844&action=edit
video showcasing bug

SUMMARY
Middle click zooming in and out ramps up ram usage and makes system laggy

STEPS TO REPRODUCE
1. view a pdf document on okular
2.  zoom in and out using middle click for a bit (until okular loses frames)

OBSERVED RESULT
memory usage goes from 100mb to 400mb, okular becomes unusuable (choppy
scrolling, delayed text selection)
even recording crashed on the attachment video

System info:
Operating System: CachyOS Linux 
KDE Plasma Version: 6.3.4
KDE Frameworks Version: 6.13.0
Qt Version: 6.9.0
Kernel Version: 6.14.4-2-cachyos (64-bit)
Graphics Platform: Wayland
Processors: 12 × 11th Gen Intel® Core™ i5-11400 @ 2.60GHz
Memory: 15,5 GiB of RAM
Graphics Processor: NVIDIA GeForce GTX 1650
Manufacturer: Micro-Star International Co., Ltd.
Product Name: MS-7D20
System Version: 1.0

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