wp-login.php does not allow redirecting 'read' capability (Subscriber) to Dashboard instead of Profile upon login

[cliffpaulick]

Re: ​https://github.com/WordPress/WordPress/blob/4.9.8/wp-login.php#L965

I understand checking if $redirect_to is empty, but why specifically intercept users without 'edit_posts' capability that do have 'read' capability?

Here's some code that I am using to override this: ​https://gist.github.com/cliffordp/35d74c3bceec9fbd10547b5d1ba988e5

I'm hoping this snippet will not be needed in the future.

Thank you.