$ git clone -n https://src.fedoraproject.org/rpms/rubygem-nio4r.git /var/lib/mock/f31-build-52635-27707/root/thebuilddir/tmp/scmroot/rubygem-nio4r
Cloning into '/var/lib/mock/f31-build-52635-27707/root/thebuilddir/tmp/scmroot/rubygem-nio4r'...
$ git reset --hard 7d0f80b4e1a9eae8ee446e1f8d5eb5f61edb4726
HEAD is now at 7d0f80b Update sources.