$ git clone -n git://pkgs.fedoraproject.org/rpms/xpa /var/lib/mock/f29-build-4517-1056/root/thebuilddir/tmp/scmroot/xpa
Cloning into '/var/lib/mock/f29-build-4517-1056/root/thebuilddir/tmp/scmroot/xpa'...
$ git reset --hard 6c5fc1c131bb9c62df1c26ce37241c5e83982e56
HEAD is now at 6c5fc1c New upstream source (2.1.18)