Many a times, I use forgot password link after trying a password that I think is correct but doesn't work. In other words I have already provided my userid/email address.
Since the password is incorrect I am shown an error page
On this page, my login ID is pre-filled. So far so good.
Now, I realized that I have forgotten my password and I need to reset it. So I clicked "forgotten my password"
In most of the sites, I have to enter my email id/ user id again.
Is there any logic behind this?