Self is not resolved correctly with asynq call to classmethod

[JelleZijlstra]

from asynq import asynq
from typing_extensions import Self

class C:
    @asynq()
    @classmethod
    def load(cls) -> Self:
        return cls()

@asynq()
def f():
    reveal_type(C.load())
    reveal_type((yield C.load.asynq()))

Produces:

Revealed type is 'C' (code: reveal_type)
In <code> at line 12
   9: 
  10: @asynq()
  11: def f():
  12:     reveal_type(C.load())
                      ^
  13:     reveal_type((yield C.load.asynq()))

Revealed type is 'Any[generic_argument]' (code: reveal_type)
In <code> at line 13
  10: @asynq()
  11: def f():
  12:     reveal_type(C.load())
  13:     reveal_type((yield C.load.asynq()))
                       ^

With the asynq call we lose the precise type somewhere along the way.