At the moment, only a few functions in sir/wscompat/convert.py use it, but I imagine this could be useful for more functions as well:

• the recording XML data shares a lot of information between different recordings, for example release information data (release events, types, status, ...)
• the same goes for releases in the same release group
• again for recordings, `iterate_path_values` operates on the same release multiple times on the same path for different recordings
• the same is true for releases again