SOLR-4797: Shard splitting creates sub shards which have the wrong hash range in cluster state. This happens when numShards is not a power of two and router is compositeId

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1480481 13f79535-47bb-0310-9956-ffa450edef68