The limitation on investment in the securities of a single issuer imposed in division (A) of section 1109.47 of the Revised Code, which, in accordance with division (B)(1) of section 1109.47 the Revised Code, does not apply to a state bank's direct investment in the securities enumerated in divisions (A)(1) to (6) of section 1109.32 of the Revised Code, shall also not apply to a state bank's equity investment in an investment company or mutual fund the portfolio of which consists solely of securities enumerated in divisions (A)(1) to (6) of section 1109.32 of the Revised Code.