new_callable arg to unittest.mock.patch seems not to support partial

Bug report

Bug description:

As in the title. The following code seems to disregard the partial and proceed to call the wrapped function right away (instead of calling the wrapping partial object).

from functools import partial
from unittest.mock import patch

def wrapped():
  """an exemplary response from `some.directory.module.my_function` function"""
    return [
        {
            "some_key": "some_value",
        }]

def test_some_func():
    with patch(
        "some.directory.module.my_function", new_callable=partial(wrapped)
    ):

    # calls `my_function` internally
    some.directory.module.another_function()

Running the above will produce: TypeError: 'list' object is not callable.
Acc. to the docs an object passed as new_callable argument should be called by patch to create a new dummy object replacing the target (some.directory.module.my_function). However it seems that instead of partial being called and returning a wrapped function, a wrapped function itself is called returning the list.

CPython versions tested on:

3.11

Operating systems tested on:

macOS

レポートにある partial(wrapped) の再現例を使い、unittest.mock.patch のエントリーポイントとその new_callable の処理から始めます。観測された呼び出しシーケンスをドキュメント化された契約と比較し、target が期待される callable の動作に置き換えられるよう、回帰テストのカバレッジを追加または更新します。