Ferry rest when multi-manning

Wheel Nut:
But in Article 8 at paragraph 5 it gives another derogation.

By way of derogation from paragraph 2, within 30 hours
of the end of a daily or weekly rest period, a driver engaged in
multi-manning must have taken a new daily rest period of at
least nine hours.

Yes but as far as I can see there’s no derogation for the requirement for a “regular daily rest” period when having an interrupted daily rest period, and a regular daily rest period is at least 11 hours.