Should Clearance's default views display form errors?

[DavidVII]

Hello, possibly just a question here. It's my first time using this the clearance gem. I notice Clearance::User has uniqueness validation.

However, I notice that if you attempt to sign up with an existing email that there is no error message letting the user know that the email has already been taken. It doesn't look like clearance's default views implements this this. Should it?

[derekprior]

Closing for #554 which is a similar discussion