When trying to refresh receipt after restoring purchases, is the user queried to enter their log-in information?

I've set up my app so that after the user restores or buys in-app purchases, the receipt is refreshed from Apple's server. When I'm testing this on the sandbox, it still asks me to enter log-in and password for receipt refresh even after the information has already been entered to restore the purchases. My question is, does the same behavior occur when not in the sandbox, i.e. will the user be queried twice to enter log-in information, once on restore purchases and again on refresh receipt? Or will it remember log-in and password when it tries to refresh the receipt?