perf: patch account 400 (#10153)

Co-authored-by: feng <1304903146@qq.com>

apps/accounts/serializers/account/account.py

@@ -57,6 +57,8 @@ class AccountCreateUpdateSerializerMixin(serializers.Serializer):
 
     def set_uniq_name_if_need(self, initial_data, asset):
         name = initial_data.get('name')
+        if name is None:
+            return
         if not name:
             name = initial_data.get('username')
         if self.instance and self.instance.name == name: