Comment 5 for bug 815928

Ok, the problem appears to be that the account cannot be removed as the email address is still in use by another account.

I see two possible ways to solve this, depending on why this account is to be deleted

1. look for the second account with the same email address, and unlink the email address from it
2. remove the account + email address
3. remove the second account

or,

1. unlink the email address from the first account
2. remove the account
3. leave the second account + email address in place

The first scenario is when we want to completely remove the accounts. The second one when the account is being removed after a merge, and the only account to be left is the second one.

I hope this helps.