Middle mouse button release on Thinkpad Keyboard II
I am using a "Lenovo Thinkpad TrackPoint Keyboard II" (https://www.lenovo.com/us/en/accessories-and-monitors/keyboards-and-mice/keyboards/KBD-BO-TrackPoint-KBD-US-English/p/4Y40X49493). It is an external version of the Thinkpad Keyboard built into lenovo notebooks.
When using the external keyboard, the middle mouse button triggers a release event when starting to scroll. Thus content from the selection clipboard will be pasted.
The internal keyboard does not have this behaviour.
Attached are recordings of an internal version and an external version. Both clicking the middle mouse button and scrolling up and down repeatedly.
recording_external_keyboard.yml recording_internal_keyboard.yml