$ git clone -n git://pkgs.fedoraproject.org/rpms/swift /var/lib/mock/f29-build-6832-1681/root/thebuilddir/tmp/scmroot/swift
Cloning into '/var/lib/mock/f29-build-6832-1681/root/thebuilddir/tmp/scmroot/swift'...
$ git reset --hard 1bfab19e7681e0095b3874f1750e2f8a00dca86c
HEAD is now at 1bfab19 - Rebuilt for https://fedoraproject.org/wiki/Fedora_27_Binutils_Mass_Rebuild