due to 

```
 def __iter__(self):
        """
        Supply iter so one may construct dicts of EntryPoints easily.
        """
        return iter((self.name, self))
```

the default namedtuple asdict method is broken

instead of returning the fields, recursive objects are returned as 

```
(Pdb) v
EntryPoint(name='.git', value='setuptools_scm.git:parse', group='setuptools_scm.parse_scm')
(Pdb) v._asdict()
{'name': '.git', 'value': EntryPoint(name='.git', value='setuptools_scm.git:parse', group='setuptools_scm.parse_scm')}
(Pdb) type(v)
<class 'importlib.metadata.EntryPoint'>
(Pdb)

I'll probably fix the issue in importlib_metadata first (https://github.com/python/importlib_metadata/issues/337).

The change as implemented for importlib_metadata involves refactorings that can't be backported, so the fix will only go into Python 3.11. I'll consider backporting a more selective fix for this issue if it's important, but I suspect there may not be, given that Ronny has reported that he's already migrated to a solution accessing by attribute.

New changeset 04deaee4c8d313717f3ea8f6a4fd70286d510d6e by Jason R. Coombs in branch 'main':
bpo-44893: Implement EntryPoint as simple class with attributes. (GH-30150)
https://github.com/python/cpython/commit/04deaee4c8d313717f3ea8f6a4fd70286d510d6e

Expect the fix in 3.11a3.