c414ecd4f0
The yamaha component previously used a property named unique_id to ensure that exactly 1 media_player was discovered per zone per control_url. This was introduced so that hard coded devices wouldn't be duplicated by automatically discovered devices. In HA 0.63 unique_id became a reserved concept as part of the new device registry, and the property was removed from the component. But the default returns None, which had the side effect of only ever registering a single unit + zone, the first one discovered. This was typically the Main_Zone of the unit, but there is actually no guaruntee of that. This fix brings back the logic under a different property called zone_id. This is not guarunteed to be globally stable like unique_id is supposed to be, but it is suitable for the deduplication for yamaha media players.
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