$ git clone -n https://src.fedoraproject.org/rpms/ptpd.git /var/lib/mock/f29-build-3841-960/root/thebuilddir/tmp/scmroot/ptpd
Cloning into '/var/lib/mock/f29-build-3841-960/root/thebuilddir/tmp/scmroot/ptpd'...
$ git reset --hard 6f1c53ffada0524db1d338888ffd92ab70d2c14f
HEAD is now at 6f1c53f Escape macros in %changelog