Don't send all the fragments.  Only those needed

Change-Id: Iaf49fee143a9ffaf97992153ddee6b96a95a9289
Needed to expand the arrays as we reduce.

Change-Id: I2913e124c376243bec14484b01b1e08e2a85e991
Merge topic 'expand_fragment_integration' into next

9efbe134 Needed to expand the arrays as we reduce.
9b1f8788 Don't send all the fragments.  Only those needed