Cancel all the changes stored in the proxy (the proxy will be reset to its state
as it was just after creation). Note that if there are some cached changes (i.e. not applied
to the current proxied data model), then these cached changes are not cleared (set the "cache-changes"
property to false for this).
Cancel all the changes stored in the proxy (the proxy will be reset to its state as it was just after creation). Note that if there are some cached changes (i.e. not applied to the current proxied data model), then these cached changes are not cleared (set the "cache-changes" property to false for this).