Error "dictionary changed size during iteration" in interpreter

this looks like a race condition in interpretation

    def populate_item_wrappers(l):
        ctx: InterpreterCompileCtx = get_interpretercompilectx()
        if not ctx._with_provenance_tracking:
            return
    
        assert isinstance(l, WrappedValue)
        # to do: generalize
        if wrapped_isinstance(l, (list, tuple)):
            if l.item_wrappers is None:
                l.item_wrappers = [None for _ in range(len(l.value))]
            assert isinstance(l.item_wrappers, list)
            assert len(l.value) == len(l.item_wrappers), f"{len(l.value)=} {len(l.item_wrappers)=}"
    
            for i, v in enumerate(l.value):
                if l.item_wrappers[i] is None:
                    wv = wrap_binary_subscr(v, l, i)
                    l.item_wrappers[i] = wv
            return
    
        if wrapped_isinstance(l, dict):
            assert isinstance(l.item_wrappers, dict)
>           for k, v in l.value.items():
E           RuntimeError: dictionary changed size during iteration

seems to appear as

FAILED thunder/tests/test_jit_general.py::test_modulelist_idx - thunder.core.interpreter.InterpreterError: Encountered exception RuntimeError: dictionary changed size during iteration while tracing MyModel(
  (l): ModuleList(
    (0-1): 2 x Linear(in_features=4, out_features=4, bias=True)
  )
):

not always but more than never