Mutations are not properly propagated to parents

[Mathias Quintero]

Currently you can change values of the GraphQL property wrapper after a mutation.

However, when the mutated value is in a Fragment, the change isn't propagated to the original dictionary from where the query originated from.

This is an issue in the following scenarios:

• The Fragment is actually in a List and the view gets recycled: then it will change back to the original value at some point.
• The Fragment and the Parent both use the same variables. Then they run out of sync with each other

This will most likely require a rewrite of a lot of the GraphQL Property Wrapper and the generated initializer code