TDA4VM: vxProcessGraph() hangs when using a verified empty graph

While implementing some unit tests, I found out that calling vxProcessGraph() on a graph that has no nodes makes the process hang without feedback, even if vxVerifyGraph() succeeded.

I haven't seen a mention of this behavior in the documentation, is this intended?

Catch2 test below. If you comment the vxProcessGraph() call, then if works. Else, it just hangs.

TEST_CASE("Empty graph")
{
	// Init
	REQUIRE(0 == appInit());
	vx_context ctx = vxCreateContext();
	REQUIRE(nullptr != ctx);

	// Create
	vx_graph graph = vxCreateGraph(ctx);
	REQUIRE(VX_SUCCESS == vxGetStatus((vx_reference) graph));
	REQUIRE(nullptr != graph);
	REQUIRE(VX_SUCCESS == vxSetReferenceName((vx_reference) graph, "MyGraph"));

	// Verify
	REQUIRE(VX_SUCCESS == vxVerifyGraph(graph));
	
	// Run
	REQUIRE(VX_SUCCESS == vxProcessGraph(graph));

	// Cleanup
	REQUIRE(VX_SUCCESS == vxReleaseGraph(&graph));
	REQUIRE(VX_SUCCESS == vxReleaseContext(&ctx));
	REQUIRE(0 == appDeInit());
}