diff --git a/src/vs/workbench/services/editor/test/browser/editorService.test.ts b/src/vs/workbench/services/editor/test/browser/editorService.test.ts
index 5445b7ff1d271..99cdd078bf162 100644
--- a/src/vs/workbench/services/editor/test/browser/editorService.test.ts
+++ b/src/vs/workbench/services/editor/test/browser/editorService.test.ts
@@ -196,6 +196,36 @@ suite('EditorService', () => {
 		visibleEditorChangeListener.dispose();
 	});
 
+	test('openEditor() - same input does not cancel previous one - https://github.com/microsoft/vscode/issues/136684', async () => {
+		const [, service] = await createEditorService();
+
+		let input = new TestFileEditorInput(URI.parse('my://resource-basics'), TEST_EDITOR_INPUT_ID);
+
+		let editorP1 = service.openEditor(input, { pinned: true });
+		let editorP2 = service.openEditor(input, { pinned: true });
+
+		let editor1 = await editorP1;
+		assert.strictEqual(editor1?.input, input);
+
+		let editor2 = await editorP2;
+		assert.strictEqual(editor2?.input, input);
+
+		assert.ok(editor2.group);
+		await editor2.group.closeAllEditors();
+
+		input = new TestFileEditorInput(URI.parse('my://resource-basics'), TEST_EDITOR_INPUT_ID);
+		let inputSame = new TestFileEditorInput(URI.parse('my://resource-basics'), TEST_EDITOR_INPUT_ID);
+
+		editorP1 = service.openEditor(input, { pinned: true });
+		editorP2 = service.openEditor(inputSame, { pinned: true });
+
+		editor1 = await editorP1;
+		assert.strictEqual(editor1?.input, input);
+
+		editor2 = await editorP2;
+		assert.strictEqual(editor2?.input, input);
+	});
+
 	test('openEditor() - locked groups', async () => {
 		disposables.add(registerTestFileEditor());