Unless expressly provided otherwise in any instrument specified in subsection (a) of section 1003 of this title, any provisions in any such instrument prescribing, defining or limiting the kind of property in which the funds of the trust to which such instrument relates shall be invested shall not apply to any property owned by a testator at the time of his death and delivered to the fiduciary by the personal representative of such testator who has created a trust by his will, or delivered by the settlor to the fiduciary of a trust created in a trust agreement, or delivered to the fiduciary pursuant to a court order or other instrument creating or defining the fiduciary's duties and powers, and such fiduciary may retain all such property so acquired, subject to the limitations of the standards set forth in section 1002 of this title.