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"}

Inizia con la query cartDiscounts().get() e la chiamata queryAll mostrate nel report, quindi riproduci il malfunzionamento con uno sconto del carrello contenente una riga articolo regalo. Esamina la deserializzazione del prodotto di CartDiscountValueGiftLineItem e i dati di riferimento del prodotto restituiti, in particolare il typeId mancante. Il lavoro è completato quando la query di tutti gli sconti del carrello termina senza la DeserializationException segnalata.

Scritto dal modello di indicizzazione a partire dal testo della issue.