$ git clone -n https://src.fedoraproject.org/rpms/R-diffobj.git /var/lib/mock/f31-build-76821-31453/root/chroot_tmpdir/scmroot/R-diffobj
Cloning into '/var/lib/mock/f31-build-76821-31453/root/chroot_tmpdir/scmroot/R-diffobj'...
$ git reset --hard 61241dc175012360f2b28cad760f5bb519805676
HEAD is now at 61241dc - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild