### Apache Airflow version

2.6.2

### What happened

If I want see the common information of the N mapped task .

I edit manually the URL cause there is no button in the current airflow console 

```url
http://localhost:8090/task?dag_id=kubernetes_dag&task_id=task-one&execution_date=2023-06-18T00%3A00%3A00%2B00%3A00&map_index=0
```

by removing the `&map_index=0`

if I click on `rendered-templates` it fail

```log
{app.py:1744} ERROR - Exception on /rendered-templates [GET]
 Traceback (most recent call last):
 File "/home/airflow/.local/lib/python3.11/site-packages/flask/app.py", line 2529, in wsgi_app
   response = self.full_dispatch_request()
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 File "/home/airflow/.local/lib/python3.11/site-packages/flask/app.py", line 1825, in full_dispatch_request
   rv = self.handle_user_exception(e)
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 File "/home/airflow/.local/lib/python3.11/site-packages/flask/app.py", line 1823, in full_dispatch_request
   rv = self.dispatch_request()
        ^^^^^^^^^^^^^^^^^^^^^^^
 File "/home/airflow/.local/lib/python3.11/site-packages/flask/app.py", line 1799, in dispatch_request
   return self.ensure_sync(self.view_functions[rule.endpoint])(**view_args)
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 File "/home/airflow/.local/lib/python3.11/site-packages/airflow/www/auth.py", line 47, in decorated
   return func(*args, **kwargs)
          ^^^^^^^^^^^^^^^^^^^^^
 File "/home/airflow/.local/lib/python3.11/site-packages/airflow/www/decorators.py", line 125, in wrapper
   return f(*args, **kwargs)
          ^^^^^^^^^^^^^^^^^^
 File "/home/airflow/.local/lib/python3.11/site-packages/airflow/utils/session.py", line 76, in wrapper
   return func(*args, session=session, **kwargs)
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 File "/home/airflow/.local/lib/python3.11/site-packages/airflow/www/views.py", line 1354, in rendered_templates
   ti.refresh_from_task(raw_task)
   ^^^^^^^^^^^^^^^^^^^^
 AttributeError: 'NoneType' object has no attribute 'refresh_from_task'
```

### What you think should happen instead

_No response_

### How to reproduce

[Screencast from 19-06-2023 15:07:02.webm](https://github.com/apache/airflow/assets/10202690/10a3546f-f2ef-4c2d-a704-7eb43573ad83)


### Operating System

ubuntu 22.04

### Versions of Apache Airflow Providers

_No response_

### Deployment

Docker-Compose

### Deployment details

_No response_

### Anything else

_No response_

### Are you willing to submit PR?

- [ ] Yes I am willing to submit a PR!

### Code of Conduct

- [X] I agree to follow this project's [Code of Conduct](https://github.com/apache/airflow/blob/main/CODE_OF_CONDUCT.md)

children_states = {item["state"] for item in child_instances}
            group_state = next((state for state in wwwutils.priority if state in children_states), None)
            group_start_date = min(filter(None, children_start_dates), default=None)
            group_end_date = max(filter(None, children_end_dates), default=None)
            return {
                "task_id": task_group.group_id,
                "run_id": dag_run.run_id,
                "state": group_state,
                "start_date": group_start_date,
                "end_date": group_end_date,
            }
        def get_mapped_group_summaries():
            mapped_ti_query = (
                session.query(
                    TaskInstance.task_id, TaskInstance.state, TaskInstance.run_id, TaskInstance.map_index
                )
                .filter(
                    TaskInstance.dag_id == dag.dag_id,
                    TaskInstance.task_id.in_(child["id"] for child in children),
                    TaskInstance.run_id.in_(r.run_id for r in dag_runs),
                )
                .order_by(TaskInstance.task_id, TaskInstance.run_id)
            )
            
            mapped_tis: Mapping[str, Mapping[int, list[TaskInstance]]] = collections.defaultdict(
                lambda: collections.defaultdict(list),
            )
            for ti in mapped_ti_query:
                mapped_tis[ti.run_id][ti.map_index].append(ti)
            def get_mapped_group_summary(run_id: str, mapped_instances: Mapping[int, list[TaskInstance]]):