$ git clone -n https://src.fedoraproject.org/rpms/zlib.git /var/lib/mock/f31-build-116596-34571/root/chroot_tmpdir/scmroot/zlib
Cloning into '/var/lib/mock/f31-build-116596-34571/root/chroot_tmpdir/scmroot/zlib'...
$ git reset --hard c917e2413d487b0b2203747e5ba1d687f54e6956
HEAD is now at c917e24 - Re-added IBM CRC32 optimalization for POWER 8+ architectures - Fixed firefox crash duer to zlib (#1741266) - Added test case for IBM CRC32 optimalization