Misleading deprecations documentation for getsize

The documentation suggests that this old code

width, height = font.getsize("Hello world")

should be replaced by

left, top, right, bottom = font.getbbox("Hello world")
width, height = right - left, bottom - top

A 1:1 replacement would require different new code

left, top, right, bottom = font.getbbox("Hello world")
width, height = right - left, bottom

The documentation should mention that and maybe link to this comment.