$ git clone -n git://pkgs.fedoraproject.org/rpms/libyahoo2 /var/lib/mock/f29-build-3158-865/root/thebuilddir/tmp/scmroot/libyahoo2
Cloning into '/var/lib/mock/f29-build-3158-865/root/thebuilddir/tmp/scmroot/libyahoo2'...
$ git reset --hard b7ea421892bab7658065f52d5ece4755375b156e
HEAD is now at b7ea421 - Rebuilt for https://fedoraproject.org/wiki/Fedora_26_Mass_Rebuild