Bug 481083

SUMMARY
I'm using a Thinkpad 13 laptop which has both physical mouse buttons associated with the trackpoint and a clickpad. I often use the buttons of the trackpoint while directing the location of the pointer with the clickpad. If I click and hold the physical left mouse button (associated with the TrackPoint), and drag several times on the TrackPad, the Trackpad sends left mouse button release and press events at the beginning of every drag. This makes it difficult to select large regions of text, where multiple motions across the trackpad may be required. Note that if I instead click and hold the trackpad button there will not be repeated left button press and release events.

See also the analogous bug report in wlroots, and the merge request that fixes it:
https://gitlab.freedesktop.org/wlroots/wlroots/-/issues/3665
https://gitlab.freedesktop.org/wlroots/wlroots/-/merge_requests/4185

STEPS TO REPRODUCE
1. Click and hold left button of trackpoint at start of desired selection
2. Move cursor using clickpad across part of the desired selection
3. Lift finger, retake, and continue moving cursor across the rest of the selection

OBSERVED RESULT
The first part of selection (captured by step 2) is lost at the beginning of step 3.

EXPECTED RESULT
Selection should continue from the position where the cursor started to where it ended at the end of step 3.

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 5.27.10
KDE Frameworks Version: 
Qt Version: 

ADDITIONAL INFORMATION