Removed untouched branch in StateApps.__init__()

        self.render_multiple(list(models.values()) + self.real_models)

        # If there are some lookups left, see if we can first resolve them

        # ourselves - sometimes fields are added after a model is registered

        for lookup_model in self._pending_operations:

            try:

                model = self.get_model(*lookup_model)

            except LookupError:

                if lookup_model == make_model_tuple(settings.AUTH_USER_MODEL) and ignore_swappable:

                    continue

                # Raise an error with a best-effort helpful message

                # (only for the first issue). Error message should look like:

                # "ValueError: Lookup failed for model referenced by

                # field migrations.Book.author: migrations.Author"

                msg = "Lookup failed for model: {model[0]}.{model[1]}"

                raise ValueError(msg.format(model=lookup_model))

            else:

                self.do_pending_operations(model)

        # There shouldn't be any operations pending at this point.

        pending_models = set(self._pending_operations)

        if ignore_swappable:

            pending_models -= {make_model_tuple(settings.AUTH_USER_MODEL)}

        if pending_models:

            msg = "Unhandled pending operations for models: %s"

            labels = (".".join(model_key) for model_key in self._pending_operations)

            raise ValueError(msg % ", ".join(labels))

    def render_multiple(self, model_states):

        # We keep trying to render the models in a loop, ignoring invalid