How to handle out-of-sequence ADDs.

Hi all,


I want to know how out of sequence ADD messages is handled.

Suppose that a user has an event with SEQ #1 in his store.
Now if ADD with SEQ#3 comes up, what should be done?
Since the received SEQ# > current SEQ#, this is a more recent ADD. 

At this point if I accept ADD#3 as update, the SEQ# of the event in my calendar would increase to #3.
Next when older ADD#2 (or any other method) arrives, it will be rejected, since SEQ# < current SEQ#.

In effect, user's version of vevent, although indicates the most recent SEQ#, is not up-to-date.
How does iTIP handle this? Or am I missing something?

Please comment!


Regards,
Shriram V.