A multi-provider injection token for providing extra GraphQL fragments that will be spread into product preview queries.
This can be used to retrieve additional data that is not covered by the standard Daffodil interfaces.
Fragments provided here will also be included in the DAFF_PRODUCT_MAGENTO_EXTRA_PRODUCT_FRAGMENTS.
The same fragment should not be provided for both of these tokens.
See MagentoProductPreview for more info.
Fragment structure is platform-specific and this feature should be used with care.
This can increase query complexity above the Magento default of 300.
Daffodil only guarantees that stock queries don't exceed the limit of 300.
Apps using this token should therefore increase the query complexity limit
to accommodate the extra complexity contributed by the provided fragments.