gphoto2/gthumb annoyance

Ran into An error occurred in the io-library (‘Could not claim the USB device’): Could not claim interface 0 (Operation not permitted). Make sure no other program or kernel module (such as sdc2xx, stv680, spca50x) is using the device and you have read/write access to the device using gphoto2 on Werewolf. A search landed up a set of posts here. Any tips would be appreciated at sankarshan dot mukhopadhyay at gmail dot com. Uploaded some debug output. Turns out that there is a bug on this. Thanks Basil Mohammad Gohar for pointing out the FedoraForum thread