Switching between query builder and script editor doesn't refresh results in Redux

When we submit a query through query builder, the `result.fluxGroupKeyUnion` includes all the grouped keys like `["_start", "_stop", "_time", "_value", "_field", "_measurement"]` but if we switch to script editor and add a `|> group(columns: ["_measurement"])` in the flux query, that list stays the same and doesn’t get updated. Instead we are expecting to see `["_start", "_stop", "_measurement"]`.