When graph swapping (which is quite common) we only use the newly-made
resource if the Cmp function between the two shows a difference. If the
old resource has previously received a value via send/recv, then when it
is compared to the new value, it will almost always be different. As a
result, we need to run send/recv on the newly made graph to make sure it
has up-to-date values before we compare. This has to happen after
autogrouping since the resources can often be autogrouped and any child
grouped resource will cause a remake of all of the other children and
parents.
It turns out that the actual send/recv properties were being compared as
well, and for unknown reasons (tunnel vision perhaps) they are often not
identical. Skip comparing these for now until we find a fix or
understanding of how to make them identical.
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