https://bugs.kde.org/show_bug.cgi?id=490952

            Bug ID: 490952
           Summary: Duplicating a large image to the clipboard causes
                    PlasmaShell to hang until it's duplicated.
    Classification: Plasma
           Product: Breeze
           Version: 6.1.3
          Platform: Fedora RPMs
               URL: https://imgur.com/a/CJeITkO
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: window decoration
          Assignee: plasma-b...@kde.org
          Reporter: 4wy78...@rokejulianlockhart.addy.io
                CC: kwin-bugs-n...@kde.org, uhh...@gmail.com
  Target Milestone: ---

SUMMARY
Duplicating a large image to the clipboard causes PlasmaShell to hang until
it's duplicated.

STEPS TO REPRODUCE
1.  ```sh
    firefox
'https://addons.mozilla.org/firefox/downloads/file/3617883/nimbus_screenshot-15.6.9.xpi'
    ```
2.  Screenshot the entire page of
https://ux.stackexchange.com/questions/40627/what-do-you-call-websites-that-make-heavy-use-of-vertical-scrolling?noredirect=1&lq=1.
3.  Duplicate it to the clipboard.

OBSERVED RESULT
PlasmaShell hangs. Luckily, the `noborderrule=2` KWin rule allows me to see the
window decorations at least. Otherwise, I would have thought that it had
crashed. It appears instead to merely not render its contents.

Firefox hangs too, *if you attempt to close it*. However, that's probably worth
an issue at their Bugzilla, rather than here.

EXPECTED RESULT
PlasmaShell shouldn't be affected by this.

SOFTWARE/OS VERSIONS
Operating System: Fedora Linux 40
KDE Plasma Version: 6.1.3
KDE Frameworks Version: 6.4.0
Qt Version: 6.7.2
Kernel Version: 6.9.11-200.fc40.x86_64 (64-bit)
Graphics Platform: X11
Processors: 12 × AMD Ryzen 5 7600X 6-Core Processor
Memory: 30.5 GiB of RAM
Graphics Processor: AMD Radeon RX 5700
Manufacturer: ASRock
Product Name: X670E Taichi

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