$ git clone -n https://src.fedoraproject.org/rpms/libjson-rpc-cpp.git /var/lib/mock/f31-build-58799-28499/root/chroot_tmpdir/scmroot/libjson-rpc-cpp
Cloning into '/var/lib/mock/f31-build-58799-28499/root/chroot_tmpdir/scmroot/libjson-rpc-cpp'...
$ git reset --hard db8a9e95a69a2045a942c3abe4c06c2d2b0e400b
HEAD is now at db8a9e9 Rebuild (jsoncpp)