$ git clone -n https://src.fedoraproject.org/rpms/grfcodec.git /var/lib/mock/f31-build-95255-32530/root/chroot_tmpdir/scmroot/grfcodec
Cloning into '/var/lib/mock/f31-build-95255-32530/root/chroot_tmpdir/scmroot/grfcodec'...
$ git reset --hard 223d0bd165815705722b0d0cb5e27d65238c62e6
HEAD is now at 223d0bd - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild