$ git clone -n https://src.fedoraproject.org/rpms/R-msm.git /var/lib/mock/f31-build-74041-31069/root/chroot_tmpdir/scmroot/R-msm
Cloning into '/var/lib/mock/f31-build-74041-31069/root/chroot_tmpdir/scmroot/R-msm'...
$ git reset --hard 90b8897062b784ef1dc235ef947e67df8cacf922
HEAD is now at 90b8897 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild