### Apache Airflow version

2.3.3 (latest released)

### What happened

An URL I saved in the past, `https://astronomer.astronomer.run/dx4o2568/home?tags=test`,  has the tag field in the query parameter though I was not aware of this. When I clicked on the URL, I was confused because I did not see any DAGs when I should have a bunch.

After closer inspection, I realized that the URL has the tag field in the query parameter but then noticed that the tag box in the Airflow UI wasn't properly populated.

![screen_shot_2022-07-12_at_8 11 07_am](https://user-images.githubusercontent.com/5952735/182496710-601b4a98-aacb-4482-bb9f-bb3fdf9e265f.png)


### What you think should happen instead

When I clicked on the URL, the tag box should have been populated with the strings in the URL.

### How to reproduce

Start an Airflow deployment with some DAGs and add the tag query parameter. More specifically, it has to be a tag that is not used by any DAG.

### Operating System

N/A

### Versions of Apache Airflow Providers

_No response_

### Deployment

Astronomer

### Deployment details

_No response_

### Anything else

_No response_

### Are you willing to submit PR?

- [X] 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)

restriction = TimeRestriction(dag.start_date, dag.end_date, False)
            dates = collections.Counter()
            if isinstance(dag.timetable, CronDataIntervalTimetable):
                for next in croniter(
                    dag.timetable.summary, start_time=last_automated_data_interval.end, ret_type=datetime
                ):
                    if next is None:
                        break
                    if next.year != year:
                        break
                    if dag.end_date and next > dag.end_date:
                        break
                    dates[next.date()] += 1
            else:
                while True:
                    info = dag.timetable.next_dagrun_info(
                        last_automated_data_interval=last_automated_data_interval, restriction=restriction
                    )
                    if info is None:
                        break
                    if info.logical_date.year != year:
                        break
                    last_automated_data_interval = info.data_interval
                    dates[info.logical_date] += 1
            data_dag_states.extend(
                {"date": date.isoformat(), "state": "planned", "count": count}
                for (date, count) in dates.items()
            )
        now = DateTime.utcnow()
        data = {