extensding EPP <update> command for contact

Scott,
according to the wording of section 3.2.5 in RFC 3733 EPP contact 
<update> command has to contain at least one element to modify. The fact 
can be very inconvenient for potential EPP extensions of the command. 
The same section in domain object mapping document contains a provision 
for EPP domain <update> commands without any element to modify. 
To make EPP extension of contact <update> command reasonably convenient 
and to restore protocol symmetry the wording of the section 3.2.5 in RFC 
3733 should be modified to allow EPP contact <update> commands that do 
not contain any element to modify.

Similar problem exists for host object mapping (RFC 3732, section 3.2.5).

Janusz Sienkiewicz