[php-maint] Bug#471548: removing and (re)installing disables php5

[Filipus Klutiero]

Package: libapache2-mod-php5
Version: 5.2.5-3
Severity: normal

By default, the php5 module is enabled after installing libapache2-mod-php5. 
However, removal followed by (re)installation isn't idempotent, leaving php5 
disabled.

--- System information. ---
Architecture: i386
Kernel:       Linux 2.6.24

Debian Release: lenny/sid
  990 testing         security.debian.org 
  990 testing         ftp.ca.debian.org 
  500 unstable        ftp.ca.debian.org 

--- Package information. ---
Depends                       (Version) | Installed
=======================================-+-================
apache2-mpm-prefork        (>> 2.0.52)  | 2.2.8-1
 OR apache2-mpm-itk                     | 
apache2.2-common                        | 2.2.8-1
libbz2-1.0                              | 1.0.4-3
libc6                        (>= 2.7-1) | 2.7-6
libcomerr2                  (>= 1.33-3) | 1.40.6-1
libdb4.6                                | 4.6.21-6
libkrb53                (>= 1.6.dfsg.2) | 1.6.dfsg.3~beta1-3
libmagic1                               | 4.23-2
libpcre3                       (>= 7.4) | 7.4-1+lenny1
libssl0.9.8               (>= 0.9.8f-5) | 0.9.8g-4
libxml2                     (>= 2.6.28) | 2.6.31.dfsg-2
mime-support                (>= 2.03-1) | 3.40-1.1
php5-common                 (= 5.2.5-3) | 5.2.5-3
ucf                                     | 3.005
zlib1g                     (>= 1:1.1.4) | 1:1.2.3.3.dfsg-11