File

util.datamapper: Deal with locally built stanzas missing xmlns So the problem is that xmlns is not inherited when building a stanza, and then :get_child(n, ns) with an explicit namespace does not find that such child tags. E.g. local t = st.stanza("foo", { xmlns = "urn:example:bar" }) :text_tag("hello", "world"); assert(t:get_child("hello", "urn:example:bar"), "This fails"); Meanwhile, during parsing (util.xmppstream or util.xml) child tags do get the parents xmlns when not overriding them. Thus, in the above example, if the stanza is passed trough `t = util.xml.parse(tostring(t))` then the assert succeeds. This change makes it so that it leaves out the namespace argument to :get_child when it is the same as the current/parent namespace, which behaves the same for both built and parsed stanzas.

# XEP-0012: Last Activity / mod_uptime

[Client] Romeo
	jid: romeo@localhost
	password: password

-----

Romeo connects

Romeo sends:
	<iq id='a' type='get' to='localhost'>
		<query xmlns='jabber:iq:last'/>
	</iq>

Romeo receives:
	<iq type='result' id='a' from='localhost'>
		<query xmlns='jabber:iq:last' seconds='0'/>
	</iq>

Romeo disconnects