https://fedoraproject.org/wiki/Packaging:Guidelines#Configuration_of_Package_Managers grants only exception to ship repo definitions to fedora-release, but afaik F21 will use a fedora-repos package - also there is epel-release that should be mentioned for EPEL.
This was passed as a trivial package name change at todays meeting (http://meetbot.fedoraproject.org/fedora-meeting-1/2014-10-02/fpc.2014-10-02-16.00.txt):
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