Score Editor: Computer Keyboard Input grid problem

In Computer Keyboard Input mode, there seems to be a “global grid” instead of a grid per bar, unlike the other input modes.
As a consequence in this mode it is not always possible to place some notes on the first beat of bars depending on the Quantize settings, as if overlaps were not allowed.

Much clearer with some examples…

This is what I want:

And this is what I get:

Other input modes: Step Input, with the mouse and MIDI Input behave correctly.

Computer Keyboard Input vs Step Input: