Gmail automatic folders are not detected early enough

[kewisch]

When setting up a gmail account, I sometimes get into the situation where the folders have not been detected yet. Each says Automatic (None). When I used K-9 Mail for the first time, this made me think something was broken and I needed to manually select the folders, which in turn did not make it use the automatic folders it should be.

If we can delay showing this screen until folders are detected, I think this would improve the experience.

[cketti]

We do retrieve the folder list before showing this screen. If you can reproduce this, please record a debug log and attach it here.