Bugzilla Bug 218455

I get the following:
>>> Emerging (1 of 12) www-client/mozilla-firefox-bin-3.0_beta5 to /
 * firefox-3.0b5.tar.bz2 RMD160 SHA1 SHA256 size ;-) ... 
   [ ok ] * mozilla-firefox-3.0b5-es-ES.xpi RMD160 SHA1 SHA256 size ;-) ... 
   [ ok ] * checking ebuild checksums ;-) ... 
   [ ok ] * checking auxfile checksums ;-) ... 
   [ ok ] * checking miscfile checksums ;-) ... 
   [ ok ] * checking firefox-3.0b5.tar.bz2 ;-) ... 
   [ ok ] * checking mozilla-firefox-3.0b5-es-ES.xpi ;-) ... 
   [ ok ]>>> Unpacking source...
>>> Unpacking firefox-3.0b5.tar.bz2 to
>>> /var/tmp/portage/www-client/mozilla-firefox-bin-3.0_beta5/work
 * Unpacking mozilla-firefox-3.0b5-es-ES.xpi to
   /var/tmp/portage/www-client/mozilla-firefox-bin-3.0_beta5/work
 * Selected language packs (first will be default): es-ES en
>>> Source unpacked.
>>> Compiling source in
>>> /var/tmp/portage/www-client/mozilla-firefox-bin-3.0_beta5/work/firefox
>>> /...
>>> Source compiled.
>>> Test phase [not enabled]: www-client/mozilla-firefox-bin-3.0_beta5

>>> Install mozilla-firefox-bin-3.0_beta5 into
>>> /var/tmp/portage/www-client/mozilla-firefox-bin-3.0_beta5/image/
>>> /category www-client
 * Setting default locale to es-ES
>>> Completed installing mozilla-firefox-bin-3.0_beta5 into
>>> /var/tmp/portage/www-client/mozilla-firefox-bin-3.0_beta5/image/

* checking 204 files for package collisions
 * This package will overwrite one or more files that may belong to other
 * packages (see list below). You can use a command such as `portageq
 * owners / <filename>` to identify the installed package that owns a
 * file. If portageq reports that only one package owns a file then do
 * NOT file a bug report. A bug report is only useful if it identifies at
 * least two or more packages that are known to install the same file(s).
 * If a collision occurs and you can not explain where the file came from
 * then you should simply ignore the collision since there is not enough
 * information to determine if a real problem exists. Please do NOT file
 * a bug report at http://bugs.gentoo.org unless you report exactly which
 * two packages install the same file(s). Once again, please do NOT file
 * a bug report unless you have completely understood the above message.
 *
 * package www-client/mozilla-firefox-bin-3.0_beta5 NOT merged
 *
 * Detected file collision(s):
 *
 *      /usr/bin/firefox
 *
 * Searching all installed packages for file collisions...
 *
 * Press Ctrl-C to Stop
 *
 * www-client/mozilla-firefox-2.0.0.14
 *      /usr/bin/firefox

My emerge --info:
Portage 2.1.4.4 (default-linux/amd64/2007.0, gcc-4.1.2, glibc-2.6.1-r0,
2.6.23-gentoo-r8 x86_64)
=================================================================
System uname: 2.6.23-gentoo-r8 x86_64 AMD Athlon(tm) 64 Processor 3200+
Timestamp of tree: Sat, 19 Apr 2008 17:30:01 +0000
ccache version 2.4 [enabled]
app-shells/bash:     3.2_p17-r1
dev-java/java-config: 1.3.7, 2.1.4
dev-lang/python:     2.4.4-r9
dev-python/pycrypto: 2.0.1-r6
dev-util/ccache:     2.4-r7
sys-apps/baselayout: 1.12.11.1
sys-apps/sandbox:    1.2.18.1-r2
sys-devel/autoconf:  2.13, 2.61-r1
sys-devel/automake:  1.5, 1.7.9-r1, 1.8.5-r3, 1.9.6-r2, 1.10.1
sys-devel/binutils:  2.18-r1
sys-devel/gcc-config: 1.4.0-r4
sys-devel/libtool:   1.5.26
virtual/os-headers:  2.6.23-r3
ACCEPT_KEYWORDS="amd64"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-march=k8 -O2 -pipe -msse3"
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/kde/3.5/env /usr/kde/3.5/share/config
/usr/kde/3.5/shutdown /usr/share/config"
CONFIG_PROTECT_MASK="/etc/env.d /etc/env.d/java/ /etc/fonts/fonts.conf
/etc/gconf /etc/revdep-rebuild /etc/terminfo /etc/texmf/web2c
/etc/udev/rules.d"
CXXFLAGS="-march=k8 -O2 -pipe -msse3"
DISTDIR="/usr/distfiles"
FEATURES="autoaddcvs ccache collision-protect cvs distlocks metadata-transfer
multilib-strict parallel-fetch sandbox sfperms strict unmerge-orphans
userfetch"
GENTOO_MIRRORS="http://ftp.belnet.be/mirror/rsync.gentoo.org/gentoo/"
LANG="es_ES.UTF-8"
LC_ALL="es_ES.UTF-8"
LINGUAS="es en_US"
MAKEOPTS="-j2"
PKGDIR="/usr/portage/packages"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress
--force --whole-file --delete --stats --timeout=180 --exclude=/distfiles
--exclude=/local --exclude=/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY="/usr/portage/local/layman/sunrise /usr/local/portage"
SYNC="rsync://rsync.gentoo.org/gentoo-portage"
USE="3dnow 3dnowext X a52 aac acl acpi alsa amd64 asf audiofile avahi
bash-completion beagle berkdb bzip2 bzlib cairo caps cdb cdda cddb cdparanoia
cdr cli cpdflib cpudetection cracklib cross crypt cups curl daap dbus dga
divx4linux djvu dlloader dri dts dvb dvd dvdr dvdread eds encode erandom
escreen evo evolution exif fam fbcon ffmpeg flac foomaticdb fortran ftp galago
gb gcj gd ggi gif gimp gimpprint glitz glut glx gnome gnome-print gphoto2 gpm
gstreamer gtk gtk2 gtkhtml hal hddtemp iconv idn imagemagick imlib isdnlog
ithreads jabber java jpeg kde kdeenablefinal kdehiddenvisibility keyring latex
lcms libnotify lm_sensors logrotate mad madwifi midi mikmod mime mmx mmxext mng
mono motif mp3 mpeg mpi mplayer mudflap musepack musicbrainz nas nautilus
ncurses nethack network nls nocardbus nptl nptlonly nvidia ogg oggvorbis openal
opengl openmp pam pch pcre pdf perl pic plotutils png posix ppds pppd python
qt3 qt4 quicktime readline reflection remote rtc scanner sdl seamonkey session
slang slp sockets spell spl sse sse2 sse3 ssl startup-notification svg sysvipc
tcltk tcpd tetex theora threads tiff timidity tk totem trayicon truetype
unicode usb v4l v4l2 vcd videos vim vorbis wma wmf xattr xcb xcomposite xft
xine xml xml2 xorg xpm xv xvid zlib" ALSA_CARDS="ali5451 als4000 atiixp
atiixp-modem bt87x ca0106 cmipci emu10k1x ens1370 ens1371 es1938 es1968 fm801
hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem
ymfpci" ALSA_PCM_PLUGINS="adpcm alaw asym copy dmix dshare dsnoop empty extplug
file hooks iec958 ioplug ladspa lfloat linear meter mulaw multi null plug rate
route share shm softvol" APACHE2_MODULES="actions alias auth_basic authn_alias
authn_anon authn_dbm authn_default authn_file authz_dbm authz_default
authz_groupfile authz_host authz_owner authz_user autoindex cache dav dav_fs
dav_lock deflate dir disk_cache env expires ext_filter file_cache filter
headers include info log_config logio mem_cache mime mime_magic negotiation
rewrite setenvif speling status unique_id userdir usertrack vhost_alias"
ELIBC="glibc" INPUT_DEVICES="keyboard mouse" KERNEL="linux" LCD_DEVICES="bayrad
cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LINGUAS="es
en_US" USERLAND="GNU" VIDEO_CARDS="nvidia nv vesa fbdev vga"
Unset:  CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LDFLAGS,
PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS


Reproducible: Always

Fixed