RUF009 - Frozen Dataclass default should be valid #17424
Description
Summary
Frozen dataclasses and attrs objects should be considered immutable.
@attrs.frozen
class A:
foo: int = 1
@attrs.frozen
class B:
a: A = A() # should be valid, but gives RUF009
@dataclasses.dataclass(frozen=True)
class C:
foo: int = 1
@dataclasses.dataclass(frozen=True)
class D:
d: C = C() # should be valid , but gives RUF009Version
v0.11.5