An instrument that incorporates the powers provided in former Section 1120.2 (repealed by Chapter 820 of the Statutes of 1986) shall be deemed to refer to the powers provided in Article 2 (commencing with Section 16220). For this purpose, the trustee’s powers under former Section 1120.2 are not diminished and the trustee is not required to obtain court approval for exercise of a power for which court approval was not required by former law.