Where any F1land in Scotland shall, by virtue of any trust disposition or settlement or other deed of trust whatsoever F4..., be in the lawful possession, either directly or through any trustees for his behoof, of a party of full age born after the date of such trust disposition or settlement or other deed of trust, such party shall not be in any way affected by any prohibitions, conditions, restrictions, or limitations which may be contained in such trust disposition or settlement or other deed of trust, or by which the same or the interest of such party therein may bear to be qualified, such prohibitions, conditions, restrictions, or limitations being of the nature of prohibitions, conditions, restrictions, or limitations of entail, or intended to regulate the succession of such party, or to limit, restrict, or abridge his possession or enjoyment of such F1land in favour of any future heir, and such party shall be deemed and taken to be the F5... proprietor of such F1land, and it shall be lawful to such party to make application by way of summary petition to the Court of Session, setting forth the facts, and referring to this Act, and craving the court to pronounce an act and decree declaring him F5... proprietor of such F1land, and unaffected by any such conditions, provisions, restrictions, or limitations; and the court shall proceed in such petition as may be just, and shall have power to pronounce an act and decree declaring such party to be F5... proprietor of such F1land, and unaffected as aforesaid; and such act and decree may be recorded in the register of sasines, and being so recorded shall have all the operation and effect of the most formal and valid disposition to such party, and his heirs and assignees whomsoever, of such F2land duly recorded: Provided always, that the rights of F6... all parties holding F3securities over such land, and all rights which are held independently of such trust disposition or settlement or other deed of trust, shall be as they are hereby reserved entire.