Unexpected return type from keyPath subscript

[Nevin]

@Joanna_Carter

However, testing for an optional value being nil or not was getting to be problematic.

Have you seen this thread about flattening nested optionals?

@Joanna_Carter

the problem arises if you keep the key paths in a dictionary, for use in a "generic" situation where you do not know the real type of the key path, only that it is an AnyKeyPath

Without knowing the rest of use-case, on its face this description sounds like an exceptionally-complicated design. Have you considered simplifying your architecture so you don’t need to do this sort of thing at all?