perf: reduce deep_get in config_update

module/config/config_updater.py

@@ -455,8 +455,7 @@ class ConfigUpdater:
         """
         new = {}
 
-        def deep_load(keys):
-            data = deep_get(self.args, keys=keys, default={})
+        for keys, data in deep_iter(self.args, depth=3):
             value = deep_get(old, keys=keys, default=data['value'])
             typ = data['type']
             display = data.get('display')
@@ -466,8 +465,6 @@ class ConfigUpdater:
             value = parse_value(value, data=data)
             deep_set(new, keys=keys, value=value)
 
-        for path, _ in deep_iter(self.args, depth=3):
-            deep_load(path)
 
         # if not is_template:
         #     new = self.config_redirect(old, new)