message: Fix an internal error.
diff: @@ -789,6 +789,10 @@ py::object CompiledFunction::Call(py::args args, py::kwargs kwargs) {
  }
  default_pyclient_ = default_pydevice_.client;
  default_device_ = default_pydevice_.contents;
  + if (!default_device_) { // UPTC
  + always_fallback_to_python_ = true;
  + return py::cast<py::tuple>(cache_miss_(*args, **kwargs))[0];
  + }
  is_committed_ =
  py::cast<bool>(device_and_is_committed.attr("committed_to_device"));
  }
  