Fix missing properties in task identifiers

Fixes #71179

src/vs/workbench/contrib/tasks/common/tasks.ts

@@ -943,7 +943,9 @@ export namespace KeyedTaskIdentifier {
 	}
 	export function create(value: TaskIdentifier): KeyedTaskIdentifier {
 		const resultKey = sortedStringify(value);
-		return { _key: resultKey, type: value.taskType };
+		let result = { _key: resultKey, type: value.taskType };
+		Objects.assign(result, value);
+		return result;
 	}
 }