$ git clone -n https://src.fedoraproject.org/rpms/R-BufferedMatrixMethods.git /var/lib/mock/f31-build-84829-31580/root/chroot_tmpdir/scmroot/R-BufferedMatrixMethods
Cloning into '/var/lib/mock/f31-build-84829-31580/root/chroot_tmpdir/scmroot/R-BufferedMatrixMethods'...
$ git reset --hard cd1db076e2705c6b2ad49374116951a2d71e56b2
HEAD is now at cd1db07 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild