Cart discount query all cart discounts using composable API not working

Hi, While querying cart discounts using composable API getting an exception below. can you pls advice.
```
var cartDiscountQuery = apiRoot.cartDiscounts().get();
List cartDiscounts = new ArrayList<>();
queryAll(cartDiscountQuery, (Consumer>) cartDiscounts::addAll).toCompletableFuture().join();
```

**Exception**
io.vrap.rmf.base.client.DeserializationException: Could not resolve subtype of [simple type, class com.commercetools.api.models.product.ProductReference]: missing type id property 'typeId' (for POJO property 'product')\n at [Source: REDACTED (`StreamReadFeature.INCLUDE_SOURCE_IN_LOCATION` disabled); line: 1, column: 478] (through reference chain: com.commercetools.api.models.cart_discount.CartDiscountPagedQueryResponseImpl[\"results\"]->java.util.ArrayList[0]->com.commercetools.api.models.cart_discount.CartDiscountImpl[\"value\"]->com.commercetools.api.models.cart_discount.CartDiscountValueGiftLineItemImpl[\"product\"])","stack_trace":"c.f.j.d.e.InvalidTypeIdException: Could not resolve subtype of [simple type, class com.commercetools.api.models.product.ProductReference]: missing type id property 'typeId' (for POJO property 'product')\n at [Source: REDACTED (`StreamReadFeature.INCLUDE_SOURCE_IN_LOCATION` disabled); line: 1, column: 478] (through reference chain: com.commercetools.api.models.cart_discount.CartDiscountPagedQueryResponseImpl[\"results\"]->java.util.ArrayList[0]->com.commercetools.api.models.cart_discount.CartDiscountImpl[\"value\"]->com.commercetools.api.models.cart_discount.CartDiscountValueGiftLineItemImpl[\"product\"])\r\n\tat c.f.j.d.e.InvalidTypeIdException.from(InvalidTypeIdException.java:43)\r\n\tat c.f.j.d.DeserializationContext.missingTypeIdException(DeserializationContext.java:2050)\r\n\tat c.f.j.d.DeserializationContext.handleMissingTypeId(DeserializationContext.java:1622)\r\n\tat c.f.j.d.j.i.TypeDeserializerBase._handleMissingTypeId(TypeDeserializerBase.java:307)\r\n\tat c.f.j.d.j.i.AsPropertyTypeDeserializer._deserializeTypedUsingDefaultImpl(AsPropertyTypeDeserializer.java:211)\r\n\tat c.f.j.d.j.i.AsPropertyTypeDeserializer.deserializeTypedFromObject(AsPropertyTypeDeserializer.java:145)\r\n\tat c.f.j.d.d.BeanDeserializerBase.deserializeWithType(BeanDeserializerBase.java:1380)\r\n\tat c.f.j.d.d.SettableBeanProperty.deserialize(SettableBeanProperty.java:542)\r\n\tat c.f.j.d.d.BeanDeserializer._deserializeWithErrorWrapping(BeanDeserializer.java:570)\r\n\tat c.f.j.d.d.BeanDeserializer._deserializeUsingPropertyBased(BeanDeserializer.java:440)\r\n\tat c.f.j.d.d.BeanDeserializerBase.deserializeFromObjectUsingNonDefault(BeanDeserializerBase.java:1493)\r\n\tat c.f.j.d.d.BeanDeserializer.deserializeFromObject(BeanDeserializer.java:348)\r\n\tat c.f.j.d.d.BeanDeserializer._deserializeOther(BeanDeserializer.java:220)\r\n\tat c.f.j.d.d.BeanDeserializer.deserialize(BeanDeserializer.java:187)\r\n\tat c.f.j.d.j.i.AsPropertyTypeDeserializer._deserializeTypedForId(AsPropertyTypeDeserializer.java:170)\r\n\tat c.f.j.d.j.i.AsPropertyTypeDeserializer.deserializeTypedFromObject(AsPropertyTy...\r\n"}

Comienza con la consulta cartDiscounts().get() y la llamada queryAll mostradas en el informe, y luego reproduce el fallo con un descuento de carrito que contenga un elemento de línea de regalo. Inspecciona la deserialización del producto de CartDiscountValueGiftLineItem y los datos de referencia del producto devueltos, especialmente el typeId ausente. Se considera completado cuando la consulta de todos los descuentos del carrito se completa sin la DeserializationException indicada.

Escrito por el modelo de indexación a partir del texto del issue.