anchor.diff:  %%--------------------------------------------------------------------
   -spec delete_child_link(ParentDoc :: doc(), ChildName :: name()) -> ok.
   delete_child_link(ParentDoc, ChildName) ->
  -    ok = datastore:delete_links(?LINK_STORE_LEVEL, ParentDoc, ChildName).
  +    ok = model:execute_with_default_context(?MODULE, delete_links, [ParentDoc, ChildName]).
   
   %%--------------------------------------------------------------------
   %% @doc
  
positive.code:     ]),
      ok = model:execute_with_default_context(?MODULE, add_links, [
          TargetDoc, [{parent, TargetParentDoc}]
      ]),
      ok = model:execute_with_default_context(?LINK_STORE_LEVEL, TargetParentDoc, {TargetName, TargetDoc}),
      ok = model:execute_with_default_context(?LINK_STORE_LEVEL, TargetDoc, [{parent, TargetParentDoc}]).
  
  %%--------------------------------------------------------------------
  %% @doc
  
negative.code: %%--------------------------------------------------------------------
  -spec get_including_deleted(uuid()) -> {ok, datastore:document()} | datastore:get_error().
  get_including_deleted(FileUuid) ->
      model:execute_with_default_context(?MODULE, get, [FileUuid]).
  
  %%--------------------------------------------------------------------
  %% @doc
  