That the said Act shall be and the same is hereby revived, and that the same shall be and continue in full Force and Effect during such Time as the Duchy of Cornwall shall remain vested in Her Majesty, and that all Powers and Authorities by the said Act given to or vested in His late Majesty, and all Powers thereby authorized to be vested in and deputed to such Number of the regular Officers for the Time being of the said Duchy as therein specified, shall vest in and may be used and exercised by Her Majesty, and are hereby authorized to be vested in such regular Officers, subject nevertheless to and under the same Limitations and Restrictions as to Leases and Grants, and the same Conditions to be therein contained, as are required with respect thereto respectively in the said recited Act ;