I just want to say: Its gone 12 hours thus far after updating to the recent build and it hasn't yelled at me to reauthorize GDrive.
I'll let you know if anything changes.
Thanks Drashna!
I also wanted to state that I am using Google Drive with that build and receive the same errors on a daily basis:
12:56:19.3: Warning: 0 : [OAuth2TokenBase:33886199] HttpProtocolException refreshing token. HTTP Status BadRequest