[kde] [Bug 463943] New: Memory leak due to large clipboard content of files that have been moved/deleted

[Justin]

https://bugs.kde.org/show_bug.cgi?id=463943

            Bug ID: 463943
           Summary: Memory leak due to large clipboard content of files
                    that have been moved/deleted
    Classification: I don't know
           Product: kde
           Version: unspecified
          Platform: Archlinux
                OS: Linux
            Status: REPORTED
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: unassigned-bugs at kde.org
          Reporter: just007in2000 at gmail.com
  Target Milestone: ---

SUMMARY
***
NOTE: If you are reporting a crash, please try to attach a backtrace with debug
symbols.
See
https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports
***


STEPS TO REPRODUCE
1. Using cut operation of large amount of picture/video files and paste to a
different directory in dolphin file manager. (I am not sure if the files being
media files with thumbnails is relevant or not)
2. Clipboard content history is still kept in the widget (not cleared)

OBSERVED RESULT
plasmashell has a memory leak and OOM eventually happens. 
After system reboot, if clipboard history is not cleared, OOM still happens.
If clipboard history is cleared, plasmashell no longer has a memory leak.

EXPECTED RESULT
No memory leak.

SOFTWARE/OS VERSIONS
Linux/KDE Plasma:  EndeavorOS
(available in About System)
KDE Plasma Version: 5.26.5
KDE Frameworks Version: 5.101.0
Qt Version: 5.15.7

ADDITIONAL INFORMATION
Using Wayland. Clipboard share with kdeconnect may have been one cause of
issue.

Checking journalctl: I see 100s of lines of this warning:
file:///usr/share/plasma/plasmoids/org.kde.plasma.clipboard/contents/ui/UrlItemDelegate.qml:48:
TypeError: Value is undefined and could not be converted to an object

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