TextEdit display half width space and full width space with the same width

I attached the reproduce demo for this issue: main.qml
Here is the demo running result:

And when I copy a full-width space(　) to TextEdit, it shows as expected.
Then I checked the Unicode, it was u3000.

So I think regarding this issue, it is because all kinds of full-width space(like u3000) is converted into normal space(u0020).