add on_inconsistency

methnum_lib/__init__.py

@@ -134,7 +134,7 @@ class MethNumCourse(JupyterCourse):
         """
         super().collect_autograded(assignment_name=assignment_name, student_group=student_group,
                                    force_autograde=force_autograde)
-        self.merge_autograded_db(assignment_name=os.path.basename(assignment_name))
+        self.merge_autograded_db(assignment_name=os.path.basename(assignment_name), on_inconsistency="WARNING")
 
     def student_autograde(self,
                           assignment_name: str,