Bug#223417: cannot purge any of the various models of Apache2

[Joshua Kwan <joshk@triplehelix.org>]

Package: apache2
Severity: serious

I had installed apache2-mpm-worker but I went back to prefork. I wanted
to purge worker, but:

(Reading database ... 58821 files and directories currently installed.)
Removing apache2-mpm-worker ...
Purging configuration files for apache2-mpm-worker ...
update-rc.d: /etc/init.d/apache2 exists during rc.d purge (use -f to force)
dpkg: error processing apache2-mpm-worker (--purge):
 subprocess post-removal script returned error exit status 1
 Errors were encountered while processing:
  apache2-mpm-worker
  
Obviously, the rc script should not be removed... But I think I should
be able to purge the package correctly.

-- System Information:
Debian Release: testing/unstable
Architecture: i386
Kernel: Linux influx 2.4.23-grsec #5 Mon Dec 1 02:22:38 PST 2003 i586
Locale: LANG=en_US.ISO-8859-1, LC_CTYPE=en_US.ISO-8859-1 (ignored: LC_ALL set to en_US.ISO-8859-1)