Personally I don't think that this is coming from the kernel, because I reproduced it with older kernels. If this had been the case the bug would show up before upgrading to 13.10. About the bug, I'm experiencing exactly the same thing as Vladimir. I can add that for me the workaround works for not more than two times, after that, on resuming from sleep, the network-manager remains in sleep state, and the restart/shutdown functionalities are gone.
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