Unused property PROP_NODETYPES in AclLine

while performing some initial investigations for SLING-10219, i noticed that AclLine comes with a property AclLine.PROP_NODETYPES.

while i found the following example in test-33.txt , i couldn't find any usage in org.apache.sling.jcr.repoinit or a more detailed explanation:

    # Optional nodetypes clause
    deny jcr:lockManagement on /apps, /content nodetypes sling:Folder, nt:unstructured
    # nodetypes clause with restriction clause
    deny jcr:modifyProperties on /apps, /content nodetypes sling:Folder, nt:unstructured restriction(rep:itemNames,prop1,prop2)

therefore, i am bit lost what the intention behind that optional 'nodetypes' property would be in the first place as there exists no 'nodetypes' property with any type of access control entry defined by either JCR or Jackrabbit API.

i would therefore suggest to deprecate and ignore it upon parsing.