Extending the termination date to June 30, 2021, for certain provisions establishing that, unless a deed expressly provides otherwise, the grant of a certain agricultural land preservation easement governing certain parcels of land does not consolidate the parcels for any other purpose, and that a certain parcel subject to a certain easement may be conveyed separately to a certain child with certain approval of the Maryland Agricultural Land Preservation Foundation, but remains subject to the easement in perpetuity; etc.