Please add a unique error code for EXECUTE __get on document that does not exist

Testing with 7.0.0-3580 here.

If I do a transactional `EXECUTE __get` with `{"txdata":{"kv":true}}`, on a document that doesn't exist then I get an error.  Which is desirable, except the error is a generic 5000:

"code":5000,"message":"txFetch - cause: key (580559f7-1d8a-4a09-a703-1387266e2462), OP(GET), transaction operation failed | document not found 

Can a custom error code please be added for this scenario.