先做记录，有时间后做异常排查，代码：

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<?php
$raffle_members = RaffleMember::query()->where('raffle_id',148)->paginate();
	
// 使用 load 或 with 
$raffle_members->load( [
								   'raffle:id,quota,used_quota,end_at,receive_prize_at,status,must_object_id,must_object_type,goods_id,user_id',
								   'raffle.clothe:id,describe,pic_id',
								   'raffle.clothe.cover:id,clothing_id,pic',
								   'raffle.receivePrize',
								   'raffle.shortVideo:id,cover_url,desc,title,object_id,object_type,video_url',
		
							   ] );
		
$array = [];
$raffle_members->transform( function ( $raffle_member, $key ) use ( &$array ) {
	if ( $raffle_member->raffle->receivePrize ) {
		if ( $raffle_member->raffle->receivePrize->user_id === $raffle_member->user_id &&  array_get($raffle_member->raffle->receivePrize,'rest.raffle_order_item_id') && !in_array( $raffle_member->raffle->id, $array ) ) {
			$raffle_member->raffle->receivePrize->is_receive_prize = true;
			$array[] = $raffle_member->raffle->id;
		} else {
			$raffle_member->raffle->receivePrize->is_receive_prize = false;
		}
	}

	return $raffle_member;
} );
		
return $raffle_members;

返回结果描述及临时解决方案

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1、使用了 load 或 with 『预加载』关联数据，is_receive_prize 的结果将始终 false
2、未使用 load 或 with 『预加载』关联数据，is_receive_prize 的结果跟预期一致，但有 N + 1 问题
3、临时解决方案：使用『预加载』后再 toArray，再循环，问题得到解决