Using autoinstall storage sizing-policy all, does not work

I'm preparing an Ubuntu 22.04 iso. I want the default lvm size to be all, and not scaled as Ubuntu's default https://ubuntu.com/server/docs/install/autoinstall-reference.

sizing-policy
The lvm layout will, by default, attempt to leave room for snapshots and further expansion. A sizing-policy key may be supplied to control this behavior.
type: string (enumeration)
default: scaled

For that I tried both:

  storage:    sizing-policy: all

And

  storage:    layout:      name: lvm      sizing-policy: all

Nothing seems to work.
The default page I get is:

I should always edit this part manually to use the whole size.

Is there a way to make the default all ?
Thanks