Forgets changes to the named page by discarding the page recorder for the page. This is used when transitioning from one part of an application to another. All property changes for the page are lost.
This should be done if the page is no longer needed or relevant, otherwise the properties for the page will continue to be recorded by the engine, which is wasteful (especially if clustering or failover is employed on the application).
Throws an {@link ApplicationRuntimeException} if there are uncommitted changesfor the recorder (in the current request cycle).