a0d929ca_WSRP_v2_0_Specification__Statement_text
[#] CS217 [Section] 9.3 [Statement text] 
In order for the semantics of namespace encoding, whether by Consumer rewriting or Producer writing, to serve the purposes of making the encoded items unique on the aggregated page and processable by the Producer/Portlet, should they become part of a user interaction, the namespacePrefix from the RuntimeContext structure MUST be the value used for both Consumer rewriting and Producer writing and MUST be constant for the duration of the portletHandle.
WSRP v2.0 Specification
Statement text