$ git clone -n https://src.fedoraproject.org/rpms/R-sourcetools.git /var/lib/mock/f31-build-74214-31096/root/chroot_tmpdir/scmroot/R-sourcetools
Cloning into '/var/lib/mock/f31-build-74214-31096/root/chroot_tmpdir/scmroot/R-sourcetools'...
$ git reset --hard f87686a64956f7b92bbe4b50ef19b75e118c1e77
HEAD is now at f87686a - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild