When a match is found, the new broadcast (and receivers associated with it) will replace the existing one in the pending broadcast list, remaining at the same position in the list.
当匹配到相同的，新的广播和对应的接收器会将待发送的广播列表中已存在的替换掉，在列表中保留同样的位置。
When a match is found, the new broadcast (and receivers associated with it) will replace the existing one in the pending broadcast list, remaining at the same position in the list.
当匹配到相同的，新的广播和对应的接收器会将待发送的广播列表中已存在的替换掉，在列表中保留同样的位置。
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