[Pacemaker] instance id after split brain

[Junko IKEDA]

> Hi,
> 
> When I do some tests about split brain, I find the following behavior.
> After recovering from split brain, it seems that crmd receives the
instance
> id which is the same one during split brain.
> Some nodes could get the newer id if they got the old one once, but some
> couldn't get it and join the member.
> Do you think the attached patch can ignore the old instance id?
> Does this make no sense?

Sorry, it's wrong...
The same instance id should come and crmd would process it.
Well, ccm just can't send the new instance id for the candidate node.

Thanks,
Junko