up2date dependency error with biarch packages (x86_64/i386)

[Chris Wright]

I got the following result during recent up2date attempt on x86_64,
which kills the update.  I manually grabbed and installed the i386
packages for dbus, dbus-glibc, hal, and libcap.  Subsequent up2date
completes properly.  Should up2date be able to resolve this type of
dependency?

Would be useful to include the %{ARCH} in missing dependency, since
the message below does not clearly convey the actual problem.  Is
there a way to coax this information out (--verbose gets that info
when fetching headers, but not when displaying the dependency error)?

  # up2date --nox --update --verbose
  http://fedora.redhat.com/download/up2date-mirrors/fedora-core-rawhide
  using mirror: http://sunsite.mff.cuni.cz/pub/fedora/development/x86_64/

  Fetching Obsoletes list for channel: fedora-core-rawhide...
  <snip>
  
  Testing package set / solving RPM inter-dependencies...
  RPM package conflict error.  The message was:
  Test install failed because of package conflicts:
  The following packages were added to your selection to satisfy
  dependencies:
  Name                                    Version        Release
  --------------------------------------------------------------
  dbus                                    0.22           9
  dbus                                    0.22           9
  dbus-glib                               0.22           9
  dbus-glib                               0.22           9
  hal                                     0.2.98.cvs200409293
  hal                                     0.2.98.cvs200409293
  libcap                                  1.10           20
  libcap                                  1.10           20
  
  package dbus-0.22-9 is already installed
  package dbus-glib-0.22-9 is already installed
  package libcap-1.10-20 is already installed
  package hal-0.2.98.cvs20040929-3 is already installed