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d22c25bda4
Since we can't predict how many valuators may be in a future SD attached to an MD, we need to preallocate a history buffer that is large enough to keep MAX_VALUATORS coordinates per event. In addition, the history buffer needs to memorize the coordinate ranges at the time, thus requiring MDs to store (min_val, max_val, current_val, time) instead of (current_val, time) for each motion history entry. This commit only fixes the allocation.