$ git clone -n git://pkgs.fedoraproject.org/rpms/R-matrixStats /var/lib/mock/f29-build-1147-476/root/thebuilddir/tmp/scmroot/R-matrixStats
Cloning into '/var/lib/mock/f29-build-1147-476/root/thebuilddir/tmp/scmroot/R-matrixStats'...
$ git reset --hard 5cc52c4e4582005c5963572dbef7078c119d21e3
HEAD is now at 5cc52c4 - Rebuilt for https://fedoraproject.org/wiki/Fedora_27_Binutils_Mass_Rebuild