No right of pre-emption or other like right affecting any property or rights of a milk marketing board, or of a subsidiary of such a board, shall be exercisable by virtue of the making of any application under section 2 or 5 above.

Sub-paragraph (1) above shall not apply where the making of such an application is specifically identified by the right of pre-emption or other like right as a circumstance in which the right is exercisable.