Turns out that you need to add some code when generating the RestrictionEntry
Though I will update so that people don't have to hunt...
In your receiver call
final Bundle oldRestrictions = intent.getBundleExtra(Intent.EXTRA_RESTRICTIONS_BUNDLE);
then when creating the entry reference it.
e.g.
RestrictionEntry myEntry = new RestrictionEntry(KEY, oldRestrictions.getBoolean(KEY, false));
myEntry.setType(RestrictionEntry.TYPE_BOOLEAN);
myEntry.setTitle("KEY TITLE");
newEntries.add(myEntry);