Entity field flashes before disappearing from cache

[ValenCassa]

Hi all! So I'm having this issue in which a field disappears from the cache when using graphcache. The query I'm using is the following:

query getCase {
  node(
    id: "RnJhdWRDYXNlOnsiaWQiOiAiYTU0Mzc3ODUtYzRhYi00Y2JmLTgzYjYtZjIyODg5NWE4ODQ3In0="
  ) {
    ... on FraudCase {
      id
      contents {
        tokens {
          edges {
            node {
              id
            }
          }
        }
      }
    }
  }
}

The contents field is the one flashing before disappearing, which makes me unable to use get that field when trying to update it. It does not have a key, so I've set it to null, just like the documentation suggests. I've been trying to fix this for some days now with no success, so I could really use some help with this one. Thanks in advance!

Edit: My goal is to update the tokens that are part of a FraudCase. These tokens are present in multiple queries in my app, so using inspectFields + updateQuery is not really an option. I'm trying to get the IDs of the tokens that are under a FraudCase so I could then use the writeFragment method. There might be a better way to do this that I don't know, so feel free to suggest something else