$ git clone -n https://src.fedoraproject.org/rpms/timeshift.git /var/lib/mock/f29-build-5474-1303/root/thebuilddir/tmp/scmroot/timeshift
Cloning into '/var/lib/mock/f29-build-5474-1303/root/thebuilddir/tmp/scmroot/timeshift'...
$ git reset --hard fafb8acbc156c9629b6610d2ea3f1d452ccce956
HEAD is now at fafb8ac Update to 18.2