$ git clone -n https://src.fedoraproject.org/rpms/R-jsonlite.git /var/lib/mock/f31-build-74007-31063/root/chroot_tmpdir/scmroot/R-jsonlite
Cloning into '/var/lib/mock/f31-build-74007-31063/root/chroot_tmpdir/scmroot/R-jsonlite'...
$ git reset --hard 46ba55d067392df0b2e5098ceebfc1691d9e0e28
HEAD is now at 46ba55d - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild