I just tried it with a broken mail configuration, and it doesn’t offer to send a third activation link. It’s version 56ec41cd835b296c50660f9d63707311303cf8a4.
After registering my “developer” email address it says:
You're almost done! We sent an activation mail to matthew@bloch.tv. Please follow the instructions in the email to activate your account.If it doesn't arrive, check your spam folder, or try to log in again to send another activation mail.
Then I try to to log in again:
You can't log in yet. We previously sent an activation email to you at matthew@bloch.tv. Please follow the instructions in that email to activate your account.
Click here to send the activation email again.
I click the “send again” link:
We sent another activation email to you at my@email.address. It might take a few minutes for it to arrive; be sure to check your spam folder.
But when I try to log in a second time (i.e. hoping for a third activation link), the message is different:
You can't log in yet. We sent an activation email to you. Please follow the instructions in the email to activate your account.
We sent another activation email to you at matthew@bloch.tv. It might take a few minutes for it to arrive; be sure to check your spam folder.
i.e. there’s definitely no link to resend, and of course it’s wrong about having sent the email. I don’t know how long it would make me wait before offering to send it again.
There’s no prompt to try resetting your password, which does work over and over though.