Bugfix for 104a7b5a46 (#9394)

Authored by: bashonly

yt_dlp/YoutubeDL.py

@@ -2649,6 +2649,7 @@ class YoutubeDL:
 
         for old_key, new_key in self._deprecated_multivalue_fields.items():
             if new_key in info_dict and old_key in info_dict:
+                if '_version' not in info_dict:  # HACK: Do not warn when using --load-info-json
                     self.deprecation_warning(f'Do not return {old_key!r} when {new_key!r} is present')
             elif old_value := info_dict.get(old_key):
                 info_dict[new_key] = old_value.split(', ')