[JDEV] roster managment and the server

[Robert Temple]

The server responds inconsistenly to roster management and 
presence subscription messages if a client has not ever 
sent an iq to get the whole roster.  This isn't documented 
anywhere and it cost me a lot of time trying to figure it 
out.

Try it out, telnet to a server, login, but don't send a 
<iq type="get"><query xmlns="jabber:iq:roster"...

Sending a:
<iq type="set"><query xmlns="jabber:iq:roster"><item...
makes the server responds with only a
<iq type="result"...

But if a the whole roster was requested already, the server would have responded with a
<iq type="set"><query xmlns="jabber:iq:roster">
followed by a
<iq type="result"...

If this is by design it really ought to be documented somewhere.

-Robert

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