Fix missing observable output in `Vmc.run`
Created by: femtobit
This PR fixes the issue mentioned by @gcarleo in https://github.com/netket/netket/pull/82#issuecomment-457404786 and adds a corresponding unit test.
Created by: femtobit
This PR fixes the issue mentioned by @gcarleo in https://github.com/netket/netket/pull/82#issuecomment-457404786 and adds a corresponding unit test.