diff --git a/metadef b/metadef
index f5c1b6d..599fbd9 160000
--- a/metadef
+++ b/metadef
@@ -1 +1 @@
-Subproject commit f5c1b6d1b6b6e97d0cfcf2efd52ec8da12d32c86
+Subproject commit 599fbd9d7f9509b7673af90e186817b5a75ad547
diff --git a/tests/depends/graph/src/attr_util_stub.cc b/tests/depends/graph/src/attr_util_stub.cc
index a16c11b..319b2c0 100644
--- a/tests/depends/graph/src/attr_util_stub.cc
+++ b/tests/depends/graph/src/attr_util_stub.cc
@@ -135,9 +135,6 @@ GE_FUNC_DEV_VISIBILITY GE_FUNC_HOST_VISIBILITY OpDescPtr AttrUtils::CloneOpDesc(
   if (!op_desc->impl_->output_name_idx_.empty()) {
     op_desc->impl_->output_name_idx_.clear();
   }
-  if (!op_desc->impl_->optional_input_names_.empty()) {
-    op_desc->impl_->optional_input_names_.clear();
-  }
 
   return op_desc;
 }
@@ -173,8 +170,6 @@ GE_FUNC_DEV_VISIBILITY GE_FUNC_HOST_VISIBILITY OpDescPtr AttrUtils::CopyOpDesc(c
   }
   op_desc->impl_->input_name_idx_.insert(org_op_desc->impl_->input_name_idx_.begin(),
                                          org_op_desc->impl_->input_name_idx_.end());
-  op_desc->impl_->optional_input_names_.insert(org_op_desc->impl_->optional_input_names_.begin(),
-                                               org_op_desc->impl_->optional_input_names_.end());
   op_desc->impl_->output_name_idx_.insert(org_op_desc->impl_->output_name_idx_.begin(),
                                           org_op_desc->impl_->output_name_idx_.end());