Agree it's not a bug as I assume it's an implementation of the IValueConverter i...

Agree it's not a bug as I assume it's an implementation of the IValueConverter interface: https://docs.microsoft.com/en-us/dotnet/api/system.windows.d...

However since the method bodies are identical, IMO one should have the full implementation and then the other should just call the first. Still not a bug, just a code smell.