spam filters get removed when changing other privacy pages

Updated patch from 1020013 against 2.1.6

Logged In: YES
user_id=1156173

Unfortunately this patch does not fix all occurances of the
problem. I can reliably "lose" all spam filters entered by
going directly to the spam filter section after logging out.
To reproduce:

1. Login as list admin
2. Goto Privacy / Spam filters and create a spam filter
3. Logout
4. Modify logout URL from
.../<listname>/logout
to
.../<listname>/privacy/spam
5. Enter password and observe absense of Spam filter.

The worrying thing is that it appears to be the login
through the privacy/spam script that kills the spam filter.

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user_id=67709

Fixed in CVS. (2.2.0a0)

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user_id=439618

According to bugreporter (and my personal experience with
mailman) spam filters still gets removed when changing other
privacy pages in mailman 2.1.x :(
I think this bug should be reopened and closed only when it
will be really fixed in stable release of mailman.

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user_id=1123998

The bug reported in the 2005-07-08 comment was fixed in
2.1.7 as well as in the trunk (2.2.0a0).

The bug described in report 1020013 was fixed in 2.1.6b5.
The patch attached to this report for 2.1.6 is redundant and
only adds a second test

if subcat == 'spam':

in the _handleForm() method definition when the test has
already been applied before calling _handleForm().
Apparently, the submitter confused the original bug which
had been fixed differently but equivalently to the patch
with the different bug reported in the 2005-07-08 comment.

If you have evidence that any bug with these symptoms is
still in 2.1.7 or 2.1.8, please submit a new report with
supporting information as to how to reproduce it.