Goal Tending

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Rule 4.22

"Goaltending occurs when a player touches the ball during a field-goal try or tap while it is in its downward flight entirely above the basket ring level and has the possibility of entering the basket in flight, or an opponent of the free thrower touches the ball outside the cylinder during a free-throw attempt."

Is it ruled goal tending if the ball is blocked after it has contacted the backboard, but is still on its way up? I have seen this called, and passed on within the last few weeks. The official that called it swore up and down that it is goal tending and he was going to get back to all of us when he found it (haven't heard back yet). The official who didn't call it simply pointed to 4.22, saying it does not state anything about the backboard.

What is the NFHS interpretation?