kubuntu-firefox-installer does not install firefox and blocks manual firefox installation

The firefox package must have lost its replace field on k-f-i again.

This bug is active for for the i86 install as well as the amd64.

I have still the same problem with 20-Feb-2011 build.

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: kubuntu-firefox-installer 11.04ubuntu1
ProcVersionSignature: Ubuntu 2.6.38-4.31-generic 2.6.38-rc5
Uname: Linux 2.6.38-4-generic i686
Architecture: i386
Date: Tue Feb 22 01:07:58 2011
InstallationMedia: Kubuntu 11.04 "Natty Narwhal" - Alpha i386 (20110220)
ProcEnviron:
 LANGUAGE=it_IT
 LANG=it_IT.UTF-8
 LC_MESSAGES=it_IT.UTF-8
 SHELL=/bin/bash
SourcePackage: kubuntu-firefox-installer

This bug was fixed in the package firefox - 4.0~b12+build1+nobinonly-0ubuntu1

---------------
firefox (4.0~b12+build1+nobinonly-0ubuntu1) natty; urgency=low

  * New upstream release v4.0 B12 (FIREFOX_4_0b12_BUILD1)

  * Add support for unpacked xpi's in the apport hook when reporting
    the extensions installed
    - update debian/apport/firefox.py.in
  * Ensure the Apport hook can be tested properly without modification
    - update debian/apport/firefox.py.in
  * Add DEP-3 compliant headers to all of our patches, and drop the
    bug numbers we carried in filenames. Some of the filenames are so long
    that we get constant lintian warnings about long lines in the changelog
  * Drop libxul-sdk-nspr.patch - it doesn't seem to be needed
    - remove debian/patches/libxul-sdk-nspr.patch
    - update debian/patches/series
  * Move default-apps/firefox.xml to firefox-gnome-support when it is installed
    - update debian/firefox.install.in
    - update debian/firefox-gnome-support.install.in
  * Fix menu-icon-not-in-xpm-format lintian error - generate the xpm at
    build time
    - update debian/rules
    - update debian/control
  * Quieten embedded-zlib and embedded-libjpeg lintian errors. These aren't
    really errors, as we're intentionally embedding copies here
    - update debian/rules
    - add debian/firefox.lintian-overrides.in
  * Fix some extended-description-is-empty lintian errors
    - update debian/control
  * Add a manpage to fix a lintian warning
    - add debian/firefox.1.in
    - add debian/firefox.manpages.in
  * Fix build on armel, make sure we install $(INCDIR)/tremor
    - update debian/firefox-dev.install.in
  * Fix description of firefox-dev
    - update debian/control
  * Ship a pkgconfig file to enable browser plugins to build against
    Firefox rather than xulrunner
    - add debian/pkgconfig/firefox-plugin.pc.in
    - update debian/firefox-dev.install.in
    - update debian/rules
  * Check for tee surface support when deciding whether to use tree or
    system cairo
    - update debian/rules
  * Check the hunspell version is new enough in DEB_MIN_SYSDEPS=0 mode
    - update debian/rules
    - update debian/mozconfig.in
  * Fix the permissions of some files once they are installed, rather than
    directly in debian/. We weren't restoring them in clean anyway
    - update debian/rules
  * Quiten some image-in-usr-lib lintian warnings by adding them to
    lintian-overrides. There's not much point in moving them to /usr/share
    unless we split them out in to an arch-all firefox-common package
    - update debian/firefox.lintian-overrides.in
  * Don't call update-menus in postinst, and add #DEBHELPER# tokens where
    those are missing
    - update debian/firefox.postinst.in
    - update debian/firefox.postrm.in
    - update debian/firefox.preinst.in
  * Fix desktop-entry-invalid-category lintian warnings - remove Internet
    and Application categories, add GTK and GNOME
    - update debian/firefox-beta.desktop.in
    - update debian/firefox-final.desktop.in
    - update debian/firefox-nightly.desktop.in
    - update debian/firefox-unofficial.desktop.in
  * Fix menu-icon-too-big lintian error, by downscaling the...