An earlier change included the include_email flag in the request, I've manually merged this PR to resolve the conflicts, but did mostly to preserve part of the docs and the new test case.

Thanks!

I can't find any remnants of this merge / manual merge?

@berdon Not sure about the actual merge, but here's where it appears:

@dcmoore-gd @omab Yeah, this eliminates the "optional" specificity and forces it. For those using twitter authentication that haven't been approved for email requesting, you get a 401 authorization required error.

@berdon That's odd, we haven't experienced that 401 auth required error. We have apps with the email requesting both on and off with the latest version of PSA. Could there be some other factor causing it for you?

Potentially - there's one other thing I need to check. But most of the posts around the VerifyCredentials and the change to the email requests (specifically the one that this CR was addressing) indicate the need for a specific Twitter authorization on an account.