Overrides: BeWork class
Overrides: Abraham class
Add an immediate super Club and update my cached information, and those of my members
Add a sponsored Work (sent from the Work)
Overrides: BeRangeElement
Overrides: BeWork
The Club who can endorse and sponsor with this Club
Overrides: BeWork
Overrides: BeWork
Whether the direct membership includes the given Club
Notify the KeyMaster when the transitive super Clubs of this Club change
Add an immediate super Club and update my cached information, and those of my members
Add a sponsored Work (sent from the Work)
Update cached information
Overrides: BeWork
Overrides: BeWork
Change the Club who can endorse and sponsor with this Club
Unregister a previously registered KeyMaster
Figure out result of changes in membership, then propagate upwards
Figure out result of changes in membership, then propagate upwards