After 20 years the NFHS has changed its ruling

[Nevadaref]

From the NFHS Case Book 2004-05
10.6.1 SITUATION E: B1 attempts to steal the ball from stationary A1 who is holding the ball. B1 misses the ball and falls to the floor. In dribbling away, A1 contacts B1's leg, loses control of the ball and falls to the floor. RULING: No infraction or foul has occurred and play continues. Unless B1 made an effort to trip or block A1, he/she is entitled to a position on the court even if it is momentarily lying on the floor after falling down. (7-4-1, 2)

The above was removed without comment for the 2005-06 NFHS season.

Making an appearance in the 2024-25 NFHS Case Book and again this season:
4.23.1 Situation: (a) A1 is dribbling the ball; (b) A1 secures a rebound; or (c) A1 has returned to the floor after releasing a try for goal. In all cases, A1 trips over B1 who is lying on the floor, causing A1 to fall to the floor and/or lose control of the ball. Ruling: In (a), (b) and (c), blocking foul on B1. Comment: Lying on the playing court is not considered a legal guarding position. (4-23-2)