portsclean deletes necessary distfiles

[gprspb at mail.ru]

% portsclean -Dn
Detecting unreferenced distfiles...
Delete /usr/ports/distfiles/firefox-3.5-source.tar.bz2
Delete /usr/ports/distfiles/rpm/i386/fedora/10/basesystem-10.0-1.noarch.rpm
Delete /usr/ports/distfiles/rpm/i386/fedora/10/bash-3.2-30.fc10.i386.rpm
Delete /usr/ports/distfiles/rpm/i386/fedora/10/bzip2-1.0.5-3.fc10.i386.rpm
... (many other files follows)

For example, about firefox:
% ls -l /usr/ports/distfiles/firefox-3.5-source.tar.bz2 
-rw-r--r--  1 fadmin  fadmin  46444013 29 jun 20:26 /usr/ports/distfiles/firefox-3.5-source.tar.bz2

% md5 /usr/ports/distfiles/firefox-3.5-source.tar.bz2 
MD5 (/usr/ports/distfiles/firefox-3.5-source.tar.bz2) = 6dd59399db08963ef022a1d0e5010053

% cat /usr/ports/www/firefox35/distinfo 
MD5 (firefox-3.5-source.tar.bz2) = 6dd59399db08963ef022a1d0e5010053
SHA256 (firefox-3.5-source.tar.bz2) = 15f80f5cc83ebcd559975019837d12f8cda0b7130337d352410195689915b23a
SIZE (firefox-3.5-source.tar.bz2) = 46444013


% portsclean -h
portsclean 2.4.6 (2008/02/10)
...

% portupgrade --version
portupgrade 2.4.6

% ruby -v
ruby 1.8.7 (2009-04-08 patchlevel 160) [amd64-freebsd8]

% uname -a
FreeBSD gpr.nnz-home.ru 8.0-CURRENT FreeBSD 8.0-CURRENT #0 r195379: Mon Jul  6 11:52:44 MSD 2009     gpr at gpr.nnz-home.ru:/usr/obj/usr/src/freebsd-head/sys/GPR  amd64

Fresh ports tree (7 jul)


I think it is a bug.