fix method overwritten by merge

spiffworkflow-backend/src/spiffworkflow_backend/routes/process_instances_controller.py

@@ -565,39 +565,13 @@ def process_instance_reset(
     modified_process_model_identifier: str,
     spiff_step: int = 0,
 ) -> flask.wrappers.Response:
-    """Process_instance_reset."""
+    """Reset a process instance to a particular step."""
     process_instance = ProcessInstanceService().get_process_instance(
         process_instance_id
     )
-    step_detail = (
+    processor = ProcessInstanceProcessor(process_instance)
-        db.session.query(SpiffStepDetailsModel)
+    processor.reset_process(spiff_step)
-        .filter(
+    return Response(json.dumps({"ok": True}), status=200, mimetype="application/json")
-            SpiffStepDetailsModel.process_instance_id == process_instance.id,
-            SpiffStepDetailsModel.spiff_step == spiff_step,
-        )
-        .first()
-    )
-    if step_detail is not None and process_instance.bpmn_json is not None:
-        bpmn_json = json.loads(process_instance.bpmn_json)
-        bpmn_json["tasks"] = step_detail.task_json["tasks"]
-        bpmn_json["subprocesses"] = step_detail.task_json["subprocesses"]
-        process_instance.bpmn_json = json.dumps(bpmn_json)
-
-    db.session.add(process_instance)
-    try:
-        db.session.commit()
-    except Exception as e:
-        db.session.rollback()
-        raise ApiError(
-            error_code="reset_process_instance_error",
-            message=f"Could not update the Instance. Original error is {e}",
-        ) from e
-
-    return Response(
-        json.dumps(ProcessInstanceModelSchema().dump(process_instance)),
-        status=200,
-        mimetype="application/json",
-    )
 
 
 def _get_process_instance(