Comment 3 for bug 802466

We're aware of this problem. Indeed, it's part of a larger feature upgrade that we hope to implement in Shotwell within the next few releases. Specifically, we hope to switch to using OAuth / OpenID for all Google services. This change should correct your specific issue as well as correct a constellation of other, minor login issues people have been having with Google services in Shotwell. The corresponding upstream feature request is here: http://trac.yorba.org/ticket/3445

Lucas