Add Epoch

I'm getting 

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Examining ./python-oslo-config-1.2.0a4.4.g0b915fd-0.1.196.0b915fd_a789fec.noarch.rpm: python-oslo-config-1.2.0a4.4.g0b915fd-0.1.196.0b915fd_a789fec.noarch
./python-oslo-config-1.2.0a4.4.g0b915fd-0.1.196.0b915fd_a789fec.noarch.rpm: does not update installed package.
Error: Nothing to do
---

trying to install python-oslo-config.  Presumably [1].

[1] http://pkgs.fedoraproject.org/cgit/python-oslo-config.git/commit/?h=el6&id=a2d74aa75fc02576abb78ac4e32aa8d25a21e37b