[konsole] [Bug 495029] New: Context menu in long-running Konsole sessions opens slowly

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https://bugs.kde.org/show_bug.cgi?id=495029

            Bug ID: 495029
           Summary: Context menu in long-running Konsole sessions opens
                    slowly
    Classification: Applications
           Product: konsole
           Version: 24.08.0
          Platform: Other
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: konsole-devel at kde.org
          Reporter: burneddi at gmail.com
  Target Milestone: ---

SUMMARY
I reboot my computer my computer quite infrequently and always have an SSH
session to my IRC client (Weechat) open in Konsole. As a result I often have a
Konsole process that's open for up to weeks on end. When a Konsole window is
open for several days like this, the right-click contextual menu eventually
begins to take up to a couple of seconds to open.

I have not found a workaround or a synthetic reproducer for this. Tried
disabling scrollback (for that session specifically) to no avail. It seems to
have something to do with running an IRC client and therefore having lots of
scrolling text, because my other long-running Konsole sessions do not have this
issue. Clearing the scrollback does not help either though.

STEPS TO REPRODUCE
1. Run Weechat over SSH in Konsole for a couple of weeks
2. Right click somewhere in the text area to open the contextual menu

OBSERVED RESULT
Contextual menu has a noticeable delay before appearing

EXPECTED RESULT
Contextual menu appears immediately

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
(available in the Info Center app, or by running `kinfo` in a terminal window)
Linux/KDE Plasma: 
KDE Plasma Version: 
KDE Frameworks Version: 
Qt Version: 

ADDITIONAL INFORMATION

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