(un)subscribe: insecure string pickle

[Pheinlein-users]

After updating to the current CVS no (un-) subscribing
via web is possible:

When unsubscribing via link from monthly password
reminder, Mailman
detects a new Bug:

Traceback (most recent call last):
  File "/usr/lib/mailman/scripts/driver", line 87, in
run_main
    main()
  File "/usr/lib/mailman/Mailman/Cgi/options.py", line
149, in main
    mlist.ConfirmUnsubscription(user, userlang)
  File "/usr/lib/mailman/Mailman/MailList.py", line 1142,
in
ConfirmUnsubscription
    cookie = Pending.new(Pending.UNSUBSCRIPTION,
addr)
  File "/usr/lib/mailman/Mailman/Pending.py", line 64, in
new
    db = _load()
  File "/usr/lib/mailman/Mailman/Pending.py", line 121, in
_load
    return cPickle.load(fp)
ValueError: insecure string pickle

[http://sourceforge.net/tracker/index.php?func=detail&aid=671225&group_id=103&atid=100103]