IFM getEgressActionsForInterface RPC model missing Nicira extension

The action list in the output of getEgressActionsForInterface RPC is not augmented with nicira extended action, thus serialization fails when invoked:

org.opendaylight.mdsal.binding.dom.codec.impl.IncorrectNestingException
: Supplied class interface
org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.
nicira.action.rev140714.nodes.node.table.flow.instructions.instruction.
instruction.apply.actions._case.apply.actions.action.action.NxActionReg
LoadNodesNodeTableFlowApplyActionsCase is not valid case in
org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.ac
tion.Action

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https://lists.opendaylight.org/pipermail/sfc-dev/2018-July/004572.html