Nested entity from a custom mutation result fails at runtime

[eddiesholl]

Describe the bug
The resolver for a nested entity (batchCode in this case) is failing at runtime when I have selected a list of entities with a child entity. The selection is coming off the result of a custom mutation.

Cannot read properties of undefined (reading 'batchCode')\n    at id .../src/packages/backend/.graphweaver/backend/index.js:768:51)\n    at _listRelationshipField (.../src/node_modules/.pnpm/@exogee+graphweaver@2.9.7_encoding@0.1.13/node_modules/@exogee/graphweaver/lib/resolvers.js:380:15)

I believe the problem is at this line of code. The source must be a graphql entity that does not have the 'dataEntity' populated

graphweaver/src/packages/core/src/resolvers.ts

Line 566 in c5cfe2a

idValue = id(dataEntityForGraphQLEntity<G, D>(source as any));

To Reproduce
Steps to reproduce the behavior:

1. Define an entity that has a nested entity
2. Create a custom mutation that returns a list of the parent entities
3. The mutation should return microform entity instances
4. Select the 2 levels of entities

Expected behavior
This should not fail at runtime

Actual behavior
It throws an error

Screenshots or Screencasts

Desktop (please complete the following information):

• MacOS 14.4

Additional context
@thekevinbrown has a pretty good sense of what is probably wrong here