anchor.diff:  ----
   ====
   
  +.Date attribute comparison
  +====
  +----
  +lastLoginDate=ge=2016-03-02 15:21:22
  +----
  +====
  +
   .Resource assignment match
   ====
   ----
  
positive.code: ----
  ====
  
  .Null attribute match
  ====
  ----
  
negative.code: The https://tools.ietf.org/html/draft-nottingham-atompub-fiql-00[Feed Item Query Language^] (FIQL, pronounced “fickle”)
  is a simple but flexible, URI-friendly syntax for expressing filters across the entries in a syndicated feed.
  
  The FIQL queries can be passed (among other parameters) to the search endpoints available, e.g.
  
  * `GET /users?fiql=query`
  * `GET /groups?fiql=query`
  