Password reset form no longer reveals if the username or email address is a valid account

The Password reset form no longer displays any message that indicates if the account for the entered username or email address exists.

Before

If the input was not a username or email address used by an existing account, the following message which reveals if the account is valid was displayed:

unknown@example.com is not recognized as a username or an email address.

When a valid username or email address is entered, the following message was displayed:

Further instructions have been sent to your email address.

After

If the input is invalid, for example it is not an email address and exceeds the maximum length allowed for username, or if it is an invalid email address, the following message is displayed:

The username or email address is invalid.

If the input meets the criteria to be a username or an email address, the following message is displayed:

If unknown@example.com is a valid account, an email will be sent with instructions to reset your password.