[konsole] [Bug 425408] New: Vertical blue line appears at the left side of window when scrolling in Konsole 20.08.

[Benjamin Smith]

https://bugs.kde.org/show_bug.cgi?id=425408

            Bug ID: 425408
           Summary: Vertical blue line appears at the left side of window
                    when scrolling in Konsole 20.08.
           Product: konsole
           Version: 20.08.0
          Platform: Archlinux Packages
                OS: Linux
            Status: REPORTED
          Severity: minor
          Priority: NOR
         Component: emulation
          Assignee: konsole-devel at kde.org
          Reporter: bsmith7581 at gmail.com
  Target Milestone: ---

Created attachment 130902
  --> https://bugs.kde.org/attachment.cgi?id=130902&action=edit
Screenshot of Konsole window with the blue line visible.

SUMMARY
A blue line appears at the left side of the Konsole window. I am running Arch
Linux, kernel 5.8.1, Qt 5.15, Plasma 5.15.4, Frameworks 5.73, Intel UHD
graphics 620. This glitch started after the upgrade to KDE Applications 20.08.

STEPS TO REPRODUCE
1. Allow the Konsole window to accumulate enough text to scroll.
2. Scroll upward and downward in the window.


OBSERVED RESULT
A blue line appears to the left of the text in the Konsole window. The shade of
blue varies while scrolling. Usually, the line runs from top to bottom of the
window. Sometimes, the line is only at one section of the window.

EXPECTED RESULT
No vertical line of various shades of blue to the left of Konsole text. 

SOFTWARE/OS VERSIONS

Linux/KDE Plasma: Arch Linux, kernel 5.8.1
(available in About System)
KDE Plasma Version: 5.19.4
KDE Frameworks Version: 5.73
Qt Version: 5.15

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