Does not mark unresolved references for optional inner models

[chbndrhnns]

Describe the bug
Missing warning for unresolved reference.

To Reproduce

from typing import Optional

from pydantic import BaseModel


class Inner(BaseModel):
    id: int
    name: str


class Outer(BaseModel):
    inner: Optional[Inner] = None


def test_():
    actual = Outer()
    assert actual.other
    assert actual.inner.other

Expected behavior
PyCharm points out that other is no field on inner.
Compare with actual.other where the unresolved reference is triggering a warning.

Screenshots

Environments (please complete the following information):

• IDE: PyCharm 2024.1.1
• OS: macOS 14.4.1
• Pydantic Version 2.7.0
• Plugin version 0.4.13

Additional context
Add any other context about the problem here.

[chbndrhnns]

Reproduction: https://github.com/chbndrhnns/pydantic-pycharm-plugin/tree/optional-inner