Git rename detection when class and filename changed in one commit

What is the best way to handle class renames (e.g. done with Resharper) with Git?

That is, if both the class name and containing file name are changed together and committed without further changes.

It seems the way Git handles renames via a percentage changed heuristic is a bit hit and miss. For large classes it will be recognised as a rename but for small classes the percentage threshold is reached such that it will be seen as a delete and add.