mod_bookmarks2: Fix handling of nick and password elements This form of child retrieval fails when the stanza elements internally don't have an 'xmlns' attribute, which can happen sometimes for some reason, including when they have been constructed via the stanza builder API. When that is the case then the explicit namespace arguemnt does not match the nil value of the internal attribute. Calling `:get_child()` without the namespace argument does the right thing here, with both nil and the parent namespace as valid values for the internal attribute.

# This script depends on spam-blocking.pfw also being loaded
# Any traffic that is not explicitly blocked or allowed by other
# rules will be checked against the JabberSPAM server blocklist

%LIST blocklist: https://cdn.jsdelivr.net/gh/jabberspam/blacklist/blacklist.txt

::user/spam_handle_unknown_custom

CHECK LIST: blocklist contains $<@from|host>
BOUNCE=policy-violation (Your server is blocked due to spam)