anchor.diff:  +
   See the section <<withCollection constraint>> below.
   
  -`nodeType`::
  +`collectionNodeType`::
   +
   [%autowidth,frame=none]
   |===
  
positive.code:         "name": ".placement-plugin",
          "class": "org.apache.solr.cluster.placement.plugins.AffinityPlacementFactory",
          "config": {
            "nodeType": {
              "collection_A": "searchNode,indexNode",
              "collection_B": "analyticsNode"
            }
  
negative.code:             "A_primary": "A_secondary",
              "B_primary": "B_secondary"
            },
            "collectionNodeType": {
              "collection_A": "searchNode,indexNode",
              "collection_B": "analyticsNode"
            }
  