### Apache Airflow version

main (development)

### What happened

Currently when a new task is added to a dag and in the grid view, a user selects the top level of a dag run and then clicks on "Queue up new tasks", the list returned by the confirmation box is always empty. 

It appears that where the list of tasks is expected to be set, [here](https://github.com/apache/airflow/blob/ada91b686508218752fee176d29d63334364a7f2/airflow/api/common/mark_tasks.py#L516), `res` will always be an empty list. 


### What you think should happen instead

The UI should return a list of tasks that will be queued up once the confirmation button is pressed. 

### How to reproduce

Create a dag, trigger the dag, allow it to complete. 

Add a new task to the dag, click on "Queue up new tasks", the list will be empty.

### Operating System

n/a

### Versions of Apache Airflow Providers

2.3.3 and upwards including main. I've not looked at earlier releases. 

### Deployment

Other 3rd-party Helm chart

### Deployment details

_No response_

### Anything else

I have a PR prepared for this issue. 

### 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)

"""Home view."""
        from airflow.models.dag import DagOwnerAttributes
        hide_paused_dags_by_default = conf.getboolean("webserver", "hide_paused_dags_by_default")
        default_dag_run = conf.getint("webserver", "default_dag_run_display_number")
        num_runs = request.args.get("num_runs", default=default_dag_run, type=int)
        current_page = request.args.get("page", default=0, type=int)
        arg_search_query = request.args.get("search")
        arg_tags_filter = request.args.getlist("tags")
        arg_status_filter = request.args.get("status")
        arg_sorting_key = request.args.get("sorting_key", "dag_id")
        arg_sorting_direction = request.args.get("sorting_direction", default="asc")
        if request.args.get("reset_tags") is not None:
            flask_session[FILTER_TAGS_COOKIE] = None
            
            return redirect(url_for("Airflow.index"))
        cookie_val = flask_session.get(FILTER_TAGS_COOKIE)
        if arg_tags_filter:
            flask_session[FILTER_TAGS_COOKIE] = ",".join(arg_tags_filter)
        elif cookie_val:
            
            return redirect(url_for("Airflow.index", tags=cookie_val.split(",")))
        if arg_status_filter is None:
            cookie_val = flask_session.get(FILTER_STATUS_COOKIE)
            if cookie_val:
                arg_status_filter = cookie_val