Describe the Bug

Let's imagine we have two Django models: Cage and Animal where the second one has a FK to the first one. Then we have the following strawberry definition:

@strawberry_django.type(models.Cage)
class Cage:
    id: int

    @strawberry_django.field(annotate={"total_animals": Count("animals")})
    def total_animals(
        self,
        root: models.Cage,
    ) -> int:
        return root.total_animals

It works great when I ask for totalAnimals in a query but it fails if I ask for the same field in a mutation. Examples:

It works fine

query MyQuery {
  cages {
    id
    totalAnimals
  }
}

It fails with the error Error: "\'Cage\' object has no attribute \'total_animals\'"

mutation MyMutation {
  updateCage(data: {id: 10}) {
    id
    totalAnimals
  }
}

System Information

• Operating system: GNU/Linux
• strawberry-graphql==0.243.1
• strawberry-graphql-django==0.48.0