Starting mininet with flows programmed into the config data store

When mininet is started and connects to a running controller which has flows stored in the config data store, synchronization of the network with the controller does not work properly. Sometimes the controller does not discover all nodes (I saw 2 nodes out of 15 reported), sometimes (almost always) the right number of flows is not programmed into the network (i.e. flows are missing).

To reproduce:

• Start the controller
• Program 5k flows into the config data store
• Start mininet which will connect to the controller
• Lookup the number of flows in programmed mininet,
• Check the number of flows reported in the controller
• Check inventory and topology