§ General.
§ (4) In a case in which any of the conveying parties might, after the conveyance, be subject to any personal liability in respect of a restrictive covenant that adversely affects the coal or mine, the conveyance shall be deemed to contain a covenant entered into by the Commission with that party with the object and intent of affording to him and his successors in title a full and sufficient indemnity, but not further or otherwise, that the Commission will at all times after the vesting date duly perform and observe that restrictive covenant in relation to the coal or mine and will at all times keep that party and his successors in title effectually indemnified against all actions, proceedings, costs, charges, claims, and demands whatsoever in respect of that restrictive covenant.