Fix change datatype PJA on pick value tool

    dataset_id: int,

    model_class: str = "HistoryDatasetAssociation",

    overwrite: bool = True,

    ensure_can_set_metadata: bool = True,

    task_user_id: Optional[int] = None,

):

    """

    ensure_can_set_metadata can be bypassed for new outputs.

    """

    manager = _get_dataset_manager(hda_manager, ldda_manager, model_class)

    dataset_instance = manager.by_id(dataset_id)

    if ensure_can_set_metadata:

        can_set_metadata = manager.ensure_can_set_metadata(dataset_instance, raiseException=False)

        if not can_set_metadata:

            log.info(f"Setting metadata is not allowed for {model_class} {dataset_instance.id}")

        # Certain tools require tasks to be completed after job execution

        # ( this used to be performed in the "exec_after_process" hook, but hooks are deprecated ).

        param_dict = self.get_param_dict(job)

        task_wrapper = None

        try:

            self.tool.exec_after_process(

            task_wrapper = self.tool.exec_after_process(

                self.app, inp_data, out_data, param_dict, job=job, final_job_state=final_job_state

            )

        except Exception as e:

            self.sa_session.commit()

        if job.state == job.states.ERROR:

            self._report_error()

        elif task_wrapper:

            # Only task is setting metadata (if necessary) on expression tool output.

            # The dataset state is SETTING_METADATA, which delays dependent jobs until the task completes.

            task_wrapper.delay()

        cleanup_job = self.cleanup_job

        delete_files = cleanup_job == "always" or (job.state == job.states.OK and cleanup_job == "onsuccess")

        self.cleanup(delete_files=delete_files)

                        break

                if copy_object is None:

                    raise exceptions.MessageException("Failed to find dataset output.")

                out_data[key].copy_from(copy_object, include_metadata=True)

                output = out_data[key]

                # if change_datatype PJA is associated with expression tool output the new output already has

                # the desired datatype, so we use it. If the extension is "data" there's no change_dataset PJA and

                # we want to use the existing extension.

                new_ext = output.extension if output.extension != "data" else copy_object.extension

                require_metadata_regeneration = copy_object.extension != new_ext

                output.copy_from(copy_object, include_metadata=not require_metadata_regeneration)

                output.extension = new_ext

                if require_metadata_regeneration:

                    if app.config.enable_celery_tasks:

                        from galaxy.celery.tasks import set_metadata

                        output._state = model.Dataset.states.SETTING_METADATA

                        return set_metadata.si(

                            dataset_id=output.id, task_user_id=output.history.user_id, ensure_can_set_metadata=False

                        )

                    else:

                        # TODO: move exec_after_process into metadata script so this doesn't run on the headnode ?

                        output.init_meta()

                        output.set_meta()

                        output.set_metadata_success_state()

    def parse_environment_variables(self, tool_source):

        """Setup environment variable for inputs file."""