If, in the case of a position established under authority other than section 1601(a)(1) of this title that is reestablished as an excepted service position under that section, the provisions of law referred to in paragraph (2) applied to the person serving in that position immediately before the position is so reestablished and such provisions of law would not otherwise apply to the person while serving in the position as so reestablished, then such provisions of law shall, subject to paragraph (3), continue to apply to the person with respect to service in that position for as long as the person continues to serve in the position without a break in service.