ReSharper auto-complete doesn't seem to support the C# discard feature

Does anyone know if this is expected behaviour or if R# has a setting somewhere that I missed?

If I try to write 
_ = SomeMethod();

R# doesn't seem to understand that _ is valid on its own, and tries to autocomplete with some variable that has _ in it (even if it doesn't start with an underscore). Is it possible to have it either ignore autocompleting in this situation or to have it recognize _ as a valid left-hand expression?