mod_admin_blocklist: Fix traceback due to misplaced parenthesis
get_jids_with_role() throws an exception when 'host' is nil since
Prosody trunk rev 7ca5645f46cd
local st = require "util.stanza";
local omemo_namespace_prefix = "eu.siacs.conversations.axolotl."
module:hook("iq/bare/http://jabber.org/protocol/pubsub:pubsub", function (event)
local origin, stanza = event.origin, event.stanza;
local node = stanza.tags[1].tags[1].attr.node;
if node and node:sub(1, #omemo_namespace_prefix) == omemo_namespace_prefix then
origin.send(st.error_reply(stanza, "cancel", "item-not-found", "OMEMO is disabled"));
return true;
end
end, 10);