[Pkg-virtualbox-devel] Bug#568296: virtualbox-ose 3.1.2-dfsg-1+b1 recommends mysterious 3.1.2-dfsg-1+b1 module sources

[Paul Kimoto]

Package: virtualbox-ose
Version: 3.1.2-dfsg-1+b1

apt-cache tells me that this version

Recommends: virtualbox-ose-dkms (= 3.1.2-dfsg-1+b1) | virtualbox-ose-source
         (= 3.1.2-dfsg-1+b1), virtualbox-ose-qt (= 3.1.2-dfsg-1+b1), libgl1

but only version 3.1.2-dfsg-1 virtualbox-ose-{dkms,sources} are in testing
and unstable.  The changelog says

: * Binary-only non-maintainer upload for i386; no source changes.

so will there ever be +b1 packages for -dkms and -source, which are
_all.deb packages?