[konsole] [Bug 464789] New: Konsole takes more than a second to make selection available for pasting

[Oded Arbel]

https://bugs.kde.org/show_bug.cgi?id=464789

            Bug ID: 464789
           Summary: Konsole takes more than a second to make selection
                    available for pasting
    Classification: Applications
           Product: konsole
           Version: master
          Platform: Other
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: copy-paste
          Assignee: konsole-devel at kde.org
          Reporter: oded at geek.co.il
  Target Milestone: ---

SUMMARY
In Konsole, if ones double-clicks some text to select it, and then immediately
middle-click to paste the selection, often the pasted text will be what was
previously on the selection clipboard rather than the new text.

STEPS TO REPRODUCE
1. Open Konsole and have some text on the screen (for example, by running
ls-al)
2. Select something with the mouse, wait a bit and then paste it with the
middle button.
3. Select some other text by double-clicking it and then immediately middle
button pasting it

OBSERVED RESULT
The first text is pasted

EXPECTED RESULT
The second text should be pasted

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 
KDE Plasma Version: 5.28.80
KDE Frameworks Version: 5.103.0
Qt Version: 5.15.8

ADDITIONAL INFORMATION
I think it has something to do with klipper, as when looking at the
plasma-shell logs (journalctl --user -f -u plasma-plasmashell.service), I can
see the text `org.kde.klipper: Checking clip data` about the time that the old
selection is replaced with the new selection - i.e. before that log line
appears, middle clicking pastes the old selection and after that, it pastes the
new selection.

I have not been able to reproduce this issue in Kate or in Firefox, but I can
in Yakuake, so I think the problem is in the Konsole (or more korrectly, the
Konsole-part?).

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