anchor.diff:  ====
   [source, JSON]
   ----
  -Key: Associations:AccountOwner:BankAccount:4f5b48ad-f074-4a64-8cf4-1f9c54a33f76
  +Key: Associations:AccountOwner:4f5b48ad-f074-4a64-8cf4-1f9c54a33f76:BankAccount
   [
       "7873a2a7-c77c-447c-b000-890f0a4dfa9a"
   ]
  
positive.code: The first is the key. The key consists of a prefix, the identifier information
  of the association owner, and the name of the association table.
  
  "Associations:<%ASSOCIATION_TABLE%>:<%COLLECTION_ROLE%>:<%ASSOCIATION_ID%>", e.g. "Associations:AccountOwner:BankAccount:4f5b48ad-f074-4a64-8cf4-1f9c54a33f76".
  
  The second part is the `rows` field which stores (into an embedded collection) all ids
  that the current instance is related to.
  
negative.code: 
  [source, JSON]
  ----
  Key: Associations:Basket_Product:davide_basket:products
  [
     "Beer",
     "Pretzel"
  