Import error

Hi

We use batch create a lot, but have ran into a problem.

We import a large amount of users with the following:
null,null,martin@hotmail.com,martin@hotmail.com, martin@hotmail.com

(we use emailadress for USER_NAME, USER_PASS, USER_EMAIL and the user changes the password after login)

If the user changes her e-mailadress in wordpress and we try to import her again via batch create, we get error in the import process.

We have our reasons why an already imported wordpress user also exists in a new importfile.

If the user has not changed her e-mailadress, she will just be ignored in the batch process.

In short words, if the batch process finds an existing user name and the user mail is not the same in wordpress as in the import file there will be error in the import.

Is it a bug?