$ git clone -n https://src.fedoraproject.org/rpms/R-jqr.git /var/lib/mock/f31-build-74004-31063/root/thebuilddir/tmp/scmroot/R-jqr
Cloning into '/var/lib/mock/f31-build-74004-31063/root/thebuilddir/tmp/scmroot/R-jqr'...
$ git reset --hard a659570e7cbf5f8ef30cbe5d69e1d96122efc1f5
HEAD is now at a659570 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild