I had this same issue, the regex needs to be expanded a bit, here is working regex below, I haven't test that it will work with fedora, but it does work with CentOS and RHEL.
'(redhat|sl|centos)-release-(?!notes-)([\\w]*-{0,1})7(\\.|-)(.*)\\.rpm'
It basically makes the server- optional and allows for - or . after the initial version.
Dave Sanderson
Manager, System Infrastructure
Information Technology
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