[Standards] Question about 3921bis, sec. 3.1.1

[Pedro Melo]

HI,

reading through 3921, I have a question regarding section 3.1.1,  
Client Generation of Outbound Subscription Request.

In the last paragraph its mentioned that before sending the  
subscription request, the client might set the roster entry properly,  
with the handle and group information.

My question is: should the client wait for the IQ result of that  
roster set before sending the presence subscribe?

So should the client use:

C: <iq set roster ID 1>
S: <iq set push>
S: <iq result ID 1>
C: <presence subscribe>

or is this also valid:

C: <iq set roster ID 1>
C: <presence subscribe>
S: <iq set push>
S: <iq result ID 1>

Thanks in advance,
-- 
Pedro Melo
Blog: http://www.simplicidade.org/notes/
XMPP ID: melo at simplicidade.org
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