Elements/attributes/values using this namespace should never be
encountered in documents "in the wild." Any encounter of this
namespace binding should be regarded as foreign and given foreign
treatment in OpenDocument Consumers and shall be regarded as foreign
in OpenDocument PCT Consumers.
This namespace is used in test documents for verifying the
resiliency of existing implementations to the presence of foreign
material in places where PCT material might be encountered. The goal is to verify that there is no disturbance
to existing implementations and that implementations treat documents
having PCT-like extensions with resiliency.
It is not expected that documents in which this namespace is used
will be found "in the wild." In the event that they are, this
is the documentation of the namespace origin and its restricted
definition.
For information about the activity in which this namespace is
for regression-testing purposes, see PCT OpenDocument Protected
Change-Tracking Development (d140801)
and PCT OpenDocument
Protected Change-Tracking Project.