Whether the definition of a 'Controlled Substance Offense' for purposes of U.S.S.G. §4B1.2 includes a prior state law conviction for a cocaine offense, where the definition of 'cocaine' at the time of the prior state offense was broader than that of the federal schedule at the time of the later federal offense?

Whether the definition of a “Controlled Substance Offense” for purposes of U.S.S.G. §4B1.2 includes a prior state law conviction for a cocaine offense, where the definition of “ cocaine” at the time of the prior state offense was broader than that of the federal schedule at the time of the later federal offense?