Donovan Mitchell had himself a night Monday with 43 points to lift the Cavaliers to a 112–103 victory over the Pistons that evened their Eastern Conference semifinals series at two games apiece. He had just four points at halftime but scored a whopping 39 in the second half to turn the game on its head, tying the NBA playoff record for most points in a half. Cleveland outscored the Pistons 38–21 in the third quarter to take control and never looked back as the Cavs have yet to drop a playoff game at home this season. Mitchell got to the line 15 times and made 13 free throws in Monday’s victory. As a unit, the Cavs took 34 foul shots compared to just 12 for the Pistons. Free-throw discrepancies are common across the NBA, but one that drastic is certainly extraordinary. Cleveland scored 30 points from the foul line in a game it won by nine. Pistons coach J.B.…