For purposes of this section, the term “qualified rollover contribution” means a rollover contribution to a Roth IRA from another such account, or from an individual retirement plan, but only if such rollover contribution meets the requirements of section
408
(d)(3). Such term includes a rollover contribution described in section
402A
(c)(3)(A). For purposes of section
408
(d)(3)(B), there shall be disregarded any qualified rollover contribution from an individual retirement plan (other than a Roth IRA) to a Roth IRA.