6.05h - wrong interpretation ?

[_Bruno_]

6.05 A batter is out when—
(h) After hitting or bunting a fair ball, his bat hits the ball a second time in fair territory.

sac bunt situation. the batter bunts the ball on home plate and the ball immediatly pops back up against his bat. the 2nd contact was over fair territory. is the batter out or is this just a foul ball ? (batter was still in the battes box).

i saw this on tv and the umps called it foul.
J/R says its a foul ball.
is there anything in the rulebook (OBR) that proves, that this is a foul ball and not an out ?