freeing networkConfig query results in crashes

[gdamore]

Given the following code, I get all kinds of crashes, and valgrind says that the free is incorrect, reporting numerous use after-free errors. If I comment out the ZT_Node_freeQueryResult, then everything works. The docs in the ZeroTierOne.h header indicate that ZT_Node_networkConfig's return should be freed with freeQueryResult. Something isn't right.

        ZT_VirtualNetworkConfig *vcfg;
	int                      status;
	int                      rv;

	nni_mtx_lock(&zt_lk);
	vcfg = ZT_Node_networkConfig(ztn->zn_znode, nwid);
	if (vcfg == NULL) {
		nni_mtx_unlock(&zt_lk);
		return (NNG_ECLOSED);
	}
	status = vcfg->status;
	ZT_Node_freeQueryResult(ztn->zn_znode, vcfg);
	nni_mtx_unlock(&zt_lk);

[gdamore]

Actually, the above code wasn't the failing code, I was instead passing backwards parameters to freeQueryResult. Argh.