Transformers: Avoid mutating field.values in Concatenate transformation (#77179)

2 years ago · fd5ad38f38
parent 3aaeaf4203
commit fd5ad38f38
1 changed files with 1 additions and 1 deletions
--- a/packages/grafana-data/src/transformations/transformers/concat.ts
+++ b/packages/grafana-data/src/transformations/transformers/concat.ts
@ -89,7 +89,7 @@ export function concatenateFields(data: DataFrame[], opts: ConcatenateTransforme
      if (f.values.length === maxLength) {
        return f;
      }
-      const values = f.values;
+      const values = f.values.slice();
      values.length = maxLength;
      return {
        ...f,