anchor.diff:  +
   See the section <<withCollection constraint>> below.
   
  -`nodeType`::
  +`collectionNodeType`::
   +
   [%autowidth,frame=none]
   |===
  
positive.code: It also supports additional per-collection constraints:
  
  * `withCollection` enforces the placement of co-located collections' replicas on the same nodes, and prevents deletions of collections and replicas that would break this constraint.
  * `nodeType` limits the nodes eligible for placement to only those that match one or more of the specified node types.
  
  See below for more details on these constraints.
  
  
negative.code:         "name": ".placement-plugin",
          "class": "org.apache.solr.cluster.placement.plugins.AffinityPlacementFactory",
          "config": {
            "collectionNodeType": {
              "collection_A": "searchNode,indexNode",
              "collection_B": "analyticsNode"
            }
  