NPE appears in iBGP + eBGP BGP-LS neighbors connected to ODL.

2016-03-04 06:33:48,946 | WARN | lt-dispatcher-16 | AbstractTopologyBuilder | 202 - org.opendaylight.bgpcep.bgp-topology-provider - 0.4.4.Lithium-SR4 | Data change org.opendaylight.controller.md.sal.binding.impl.LazyDataTreeModification@583244be was not completely propagated to listener org.opendaylight.bgpcep.bgp.topology.provider.LinkstateTopologyBuilder@4c3f432e, aborting
java.lang.NullPointerException
at org.opendaylight.bgpcep.bgp.topology.provider.LinkstateTopologyBuilder.isisNodeAttributes(LinkstateTopologyBuilder.java:625)[202:org.opendaylight.bgpcep.bgp-topology-provider:0.4.4.Lithium-SR4]
at org.opendaylight.bgpcep.bgp.topology.provider.LinkstateTopologyBuilder.augmentProtocolId(LinkstateTopologyBuilder.java:687)[202:org.opendaylight.bgpcep.bgp-topology-provider:0.4.4.Lithium-SR4]
at org.opendaylight.bgpcep.bgp.topology.provider.LinkstateTopologyBuilder.createNode(LinkstateTopologyBuilder.java:733)[202:org.opendaylight.bgpcep.bgp-topology-provider:0.4.4.Lithium-SR4]
at org.opendaylight.bgpcep.bgp.topology.provider.LinkstateTopologyBuilder.createObject(LinkstateTopologyBuilder.java:848)[202:org.opendaylight.bgpcep.bgp-topology-provider:0.4.4.Lithium-SR4]
at org.opendaylight.bgpcep.bgp.topology.provider.LinkstateTopologyBuilder.createObject(LinkstateTopologyBuilder.java:121)[202:org.opendaylight.bgpcep.bgp-topology-provider:0.4.4.Lithium-SR4]
at org.opendaylight.bgpcep.bgp.topology.provider.AbstractTopologyBuilder.onDataTreeChanged(AbstractTopologyBuilder.java:152)[202:org.opendaylight.bgpcep.bgp-topology-provider:0.4.4.Lithium-SR4]
at org.opendaylight.controller.md.sal.binding.impl.BindingDOMDataTreeChangeListenerAdapter.onDataTreeChanged(BindingDOMDataTreeChangeListenerAdapter.java:41)[170:org.opendaylight.controller.sal-binding-broker-impl:1.2.4.Lithium-SR4]
at org.opendaylight.controller.cluster.datastore.DataTreeChangeListenerActor.dataChanged(DataTreeChangeListenerActor.java:53)[192:org.opendaylight.controller.sal-distributed-datastore:1.2.4.Lithium-SR4]
at org.opendaylight.controller.cluster.datastore.DataTreeChangeListenerActor.handleReceive(DataTreeChangeListenerActor.java:37)[192:org.opendaylight.controller.sal-distributed-datastore:1.2.4.Lithium-SR4]
at org.opendaylight.controller.cluster.common.actor.AbstractUntypedActor.onReceive(AbstractUntypedActor.java:34)[184:org.opendaylight.controller.sal-clustering-commons:1.2.4.Lithium-SR4]
at akka.actor.UntypedActor$$anonfun$receive$1.applyOrElse(UntypedActor.scala:167)[177:com.typesafe.akka.actor:2.3.10]
at akka.actor.Actor$class.aroundReceive(Actor.scala:467)[177:com.typesafe.akka.actor:2.3.10]
at akka.actor.UntypedActor.aroundReceive(UntypedActor.scala:97)[177:com.typesafe.akka.actor:2.3.10]
at akka.actor.ActorCell.receiveMessage(ActorCell.scala:516)[177:com.typesafe.akka.actor:2.3.10]
at akka.actor.ActorCell.invoke(ActorCell.scala:487)[177:com.typesafe.akka.actor:2.3.10]
at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:254)[177:com.typesafe.akka.actor:2.3.10]
at akka.dispatch.Mailbox.run(Mailbox.scala:221)[177:com.typesafe.akka.actor:2.3.10]
at akka.dispatch.Mailbox.exec(Mailbox.scala:231)[177:com.typesafe.akka.actor:2.3.10]
at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)[174:org.scala-lang.scala-library:2.10.4.v20140209-180020-VFINAL-b66a39653b]
at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)[174:org.scala-lang.scala-library:2.10.4.v20140209-180020-VFINAL-b66a39653b]
at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)[174:org.scala-lang.scala-library:2.10.4.v20140209-180020-VFINAL-b66a39653b]
at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)[174:org.scala-lang.scala-library:2.10.4.v20140209-180020-VFINAL-b66a39653b]

Note: Logs above comes from Lithium, but the same issue also appears in Beryllium release
Also see the attached topology.