Array methods do not raise an error on relationship properties.

[MacondoExpress]

Describe the bug
The array methodz _PUSH/ _POP do not raise an error when the array is not initialized; this happens only on relationship properties, while a proper error is raised on node properties.

Type definitions

type Movie {
    title: String
    stuffs: [Int!]
    actors: Actor! @relationship(type: "ACTED_IN", direction: IN, properties: "ActedIn")
}

type ActedIn @relationshipProperties {
    stuffs: [Int!]
}

type Actor {
    name: String
    movies: Movie! @relationship(type: "ACTED_IN", direction: OUT, properties: "ActedIn")
}

To Reproduce
The below mutation does not raise an error:

mutation MyMutation {
  updateMovies(update: { actors: { update: { edge: { stuffs_PUSH: 10 } } } }) {
    movies {
      actors {
        name
      }
    }
  }
}

The following will raise an error:

mutation MyMutation {
  updateMovies(update: { stuffs_PUSH: 1 }) {
    movies {
      actors {
        name
      }
    }
  }
}

Error

{
  "errors": [
    {
      "message": "Failed to invoke function `apoc.util.validatePredicate`: Caused by: java.lang.RuntimeException: Property stuffs cannot be NULL",
      "locations": [{ "line": 2, "column": 3 }],
      "path": ["updateMovies"]
    }
  ],
  "data": null
}

Expected behavior
A consistent behavior with an error that is raised, currently one mutation does not raise an error and at the same time, the property is not correctly mutated.

System (please complete the following information):

• OS: [ macOS]
• Version: [@neo4j/[email protected]]
• Node.js version: [22.0]

[neo4j-team-graphql]

We've been able to confirm this bug using the steps to reproduce that you provided - many thanks @MacondoExpress! 🙏 We will now prioritise the bug and address it appropriately.