Empty objects instead of null for claim request

[Herraiz, Victor (SanTech)]

​
The section "5.5.1.  Individual Claims Requests"  at "core" specifies that "null" values are use to request a claim with the default values

  "given_name": null

A null value makes difficult to some parsers to distinguish  between null and missing. 
Did you consider to use and empty object (e.i. "{}")? 
Was there any reason null?

Google Style Guide recommends to left out null values:

https://google.github.io/styleguide/jsoncstyleguide.xml#Empty/Null_Property_Values

Emails aren't always secure, and they may be intercepted or changed after they've been sent. Santander doesn't accept liability if this happens. If you think someone may have interfered with this email, please get in touch with the sender another way. This message doesn't create or change any contract. Santander doesn't accept responsibility for damage caused by any viruses contained in this email or its attachments. Emails may be monitored. If you've received this email by mistake, please let the sender know at once that it's gone to the wrong person and then destroy it without copying, using, or telling anyone about its contents.

Santander UK plc. Registered Office: 2 Triton Square, Regent's Place, London, NW1 3AN, United Kingdom. Registered Number 2294747. Registered in England and Wales. https://www.santander.co.uk. Telephone 0800 389 7000. Calls may be recorded or monitored. Authorised by the Prudential Regulation Authority and regulated by the Financial Conduct Authority and the Prudential Regulation Authority. Our Financial Services Register number is 106054. You can check this on the Financial Services Register by visiting the FCA’s website https://www.fca.org.uk/register.  Santander and the flame logo are registered trademarks.


Ref:[PDB#1-4B]