Merge pull request #455 from ml054/v5.4

GH-454 Strange code in _storeInternal

src/Documents/Session/InMemoryDocumentSessionOperations.ts

@@ -1378,7 +1378,7 @@ export abstract class InMemoryDocumentSessionOperations
                 this._rememberEntityForDocumentIdGeneration(entity);
             }
         } else {
-            this.generateEntityIdOnTheClient.trySetIdentity(entity, id);
+            this._generateEntityIdOnTheClient.trySetIdentity(entity, id);
         }
 
         const cmdKey = IdTypeAndName.keyFor(id, "ClientAnyCommand", null);