False positive: Access to generic instance variable through class is ambiguous #8083
Description
Describe the bug
Since v1.1.348, false-positives can occur on Access to generic instance variable through class is ambiguous error with inheritance.
This bug report follows #7089 issue and this comment
Code or Screenshots
from typing import Generic, TypeVar
T = TypeVar("T")
class Base(Generic[T]): some_attr: T
class StringBase(Base[str]): some_attr = "foo"
class IntBase(Base[int]): some_attr = 0
assert StringBase.some_attr == "foo" # `Access to generic instance variable through class is ambiguous`
assert IntBase.some_attr == 0 # `Access to generic instance variable through class is ambiguous`