### Summary

I have an inventory with two hosts, say H1 an H2.
On H2, I execute a task with `delegate_to: H1`. It seems, however, that the task is eventually executed on H2.


### Issue Type

Bug Report

### Component Name

core

### Ansible Version

```console
$ ansible --version
ansible [core 2.11.5] 
  config file = /etc/ansible/ansible.cfg
  configured module search path = ['/home/mrks/.ansible/plugins/modules', '/usr/share/ansible/plugins/modules']
  ansible python module location = /usr/lib/python3.9/site-packages/ansible
  ansible collection location = /home/mrks/.ansible/collections:/usr/share/ansible/collections
  executable location = /usr/bin/ansible
  python version = 3.9.7 (default, Aug 31 2021, 13:28:12) [GCC 11.1.0]
  jinja version = 3.0.2
  libyaml = True
```


### Configuration

```console
$ ansible-config dump --only-changed
<none>
```


### OS / Environment

Arch Linux

### Steps to Reproduce

Playbook:
```yaml
- hosts: H2
  tasks:
  - shell: hostname
    register: foo
    delegate_to: H1
  - debug:
    var: foo
```


### Expected Results

Expected foo.stdout = 'H1'.

By the way, I am pretty sure that this worked for a long time.

### Actual Results

```console
TASK [shell] *******************************************************************
changed: [H2 -> H1]

TASK [debug] *******************************************************************
ok: [H2] => {
    "foo": {
...
        "stdout": "H2",
        "stdout_lines": [
            "H2"
        ]
    }
}
```


### Code of Conduct

- [X] I agree to follow the Ansible Code of Conduct
if self._task.action in C._ACTION_ALL_INCLUDE_TASKS:
            include_args = self._task.args.copy()
            include_file = include_args.pop('_raw_params', None)
            if not include_file:
                return dict(failed=True, msg="No include file was specified to the include")
            include_file = templar.template(include_file)
            return dict(include=include_file, include_args=include_args)
        
        elif self._task.action in C._ACTION_INCLUDE_ROLE:
            include_args = self._task.args.copy()
            return dict(include_args=include_args)
        
        try:
            self._task.post_validate(templar=templar)
        except AnsibleError:
            raise
        except Exception:
            return dict(changed=False, failed=True, _ansible_no_log=self._play_context.no_log, exception=to_text(traceback.format_exc()))
        if '_variable_params' in self._task.args:
            variable_params = self._task.args.pop('_variable_params')
            if isinstance(variable_params, dict):
                if C.INJECT_FACTS_AS_VARS:
                    display.warning("Using a variable for a task's 'args' is unsafe in some situations "
                                    "(see https://docs.ansible.com/ansible/devel/reference_appendices/faq.html#argsplat-unsafe)")
                variable_params.update(self._task.args)
                self._task.args = variable_params
        if self._task.delegate_to:
            
            cvars = variables.get('ansible_delegated_vars', {}).get(self._task.delegate_to, {})
            orig_vars = templar.available_variables