Fix incorrect result value in InternalDiffResultWithDataState

Author: jerelmiller

.api-reports/api-report-cache.api.md

@@ -236,13 +236,13 @@ namespace Cache_2 {
         dataState: "complete";
         fromOptimisticTransaction?: boolean;
     } | {
-        result: DataValue.Streaming<TData> | null;
+        result: DataValue.Streaming<TData>;
         complete: false;
         missing?: never;
         dataState: "streaming";
         fromOptimisticTransaction?: boolean;
     } | {
-        result: DataValue.Partial<TData> | null;
+        result: DataValue.Partial<TData>;
         complete: false;
         missing?: MissingFieldError;
         dataState: "partial";

.api-reports/api-report.api.md

@@ -811,13 +811,13 @@ namespace Cache_2 {
         dataState: "complete";
         fromOptimisticTransaction?: boolean;
     } | {
-        result: DataValue.Streaming<TData> | null;
+        result: DataValue.Streaming<TData>;
         complete: false;
         missing?: never;
         dataState: "streaming";
         fromOptimisticTransaction?: boolean;
     } | {
-        result: DataValue.Partial<TData> | null;
+        result: DataValue.Partial<TData>;
         complete: false;
         missing?: MissingFieldError;
         dataState: "partial";

src/cache/core/types/Cache.ts

@@ -385,14 +385,14 @@ export declare namespace Cache {
         fromOptimisticTransaction?: boolean;
       }
     | {
-        result: DataValue.Streaming<TData> | null;
+        result: DataValue.Streaming<TData>;
         complete: false;
         missing?: never;
         dataState: "streaming";
         fromOptimisticTransaction?: boolean;
       }
     | {
-        result: DataValue.Partial<TData> | null;
+        result: DataValue.Partial<TData>;
         complete: false;
         missing?: MissingFieldError;
         dataState: "partial";