Personally I still have my hopes high on the related feature suggestion to provide better support for different cuts/editions (vs. different quality versions).
Right now I have moved my alternative versions into a dedicated “Movie Editions” library so they’re not getting in the way.
As for the workaround… the idea is to match the split versions to an agent different from the standard agent of this library to avoid re-merging them by accident. Then again – not sure if you might run into the same trouble by matching multiple editions with the same agent.
