$ git clone -n https://src.fedoraproject.org/rpms/msgpack.git /var/lib/mock/f40-build-756911-119054/root/chroot_tmpdir/scmroot/msgpack
Cloning into '/var/lib/mock/f40-build-756911-119054/root/chroot_tmpdir/scmroot/msgpack'...
$ git reset --hard acdbc9c98d5bc4265a803514b26b7235ab874ee8
HEAD is now at acdbc9c Upgrade from C++11 to C++14 for gtest 1.13.0