In Unity 5.12.0, when we mount a flash drive and then we eject it from its launcher quicklist we always get this message, so I think this bug can be marked as fixed in Ubuntu 12.04.
In Unity 5.12.0, when we mount a flash drive and then we eject it from its launcher quicklist we always get this message, so I think this bug can be marked as fixed in Ubuntu 12.04.