Breadcrumb width is no longer full length of #page-navbar

Hi,

I noticed that the .breadcrumb is no longer the full length of #page-navbar and when I try to make it so it only likes it in 'Standard view' or 'Full screen', due to the way the page sizes with Javascript.

All demo screenshots show it as the full width:

An out of the box Adaptable theme shows it as :

I was wondering if this is a change on purpose or by mistake?

Many thanks, Ray Reid.