$ git clone -n https://src.fedoraproject.org/rpms/vkmark.git /var/lib/mock/f29-build-4397-1035/root/thebuilddir/tmp/scmroot/vkmark
Cloning into '/var/lib/mock/f29-build-4397-1035/root/thebuilddir/tmp/scmroot/vkmark'...
$ git reset --hard 90f77590ba0e59351f5165d12469ada3817d35c9
HEAD is now at 90f7759 Add BuildRequires: gcc-c++