test_gui__subtree doesn't crash, but also doesn't work

gui/gui.c

@@ -502,6 +502,7 @@ GUI_Subtree_Reference gui_get_subtree(
 	};
 	GUI_Subtree *subtree = new_reference.node;
 	subtree->rdic = (RDIC_Context){0};
+	subtree->rdic.freelist = context->node_freelist;
 	subtree->relative_to = (GUI_Node_Reference){0};
 	subtree->flat_offset_x = 0;
 	subtree->flat_offset_y = 0;
@@ -1597,7 +1598,7 @@ void test_gui__draw_command_using_sliders(
 }
 
 
-#if 0
+#if 1
 void test_gui__subtree(
 	GUI_Context *context,
 	GUI_Rectangle full_gui_rectangle)
@@ -1655,10 +1656,11 @@ void test_gui__subtree(
 
 	middle = gui_dumb_block(context, middle, &outer_style, middle_size);
 
-	static GUI_Subtree middle_subtree = {0};
+	static GUI_Subtree_Reference middle_subtree = {0};
+	middle_subtree = gui_get_subtree(context, middle_subtree);
 	static GUI_Node_Reference middle_subtree_root = {0};
 	middle_subtree_root = gui_push_subtree(
-		context, &middle_subtree, middle_subtree_root,
+		context, middle_subtree, middle_subtree_root,
 		GUI_LAYOUT_VERTICAL, &element_style, test_size, middle);
 	{
 		static GUI_Color test_image_pixels[10*10] = {
@@ -1701,8 +1703,8 @@ void test_gui__subtree(
 	}
 #else
 	printf("slider value: %f\n", slider_value);
-	middle_subtree.offset_relative_node_percentage_y = slider_value*100;
+	middle_subtree.node->offset_relative_node_percentage_y = slider_value*100;
-	middle_subtree.offset_own_size_percentage_y = slider_value*-100;
+	middle_subtree.node->offset_own_size_percentage_y = slider_value*-100;
 #endif
 	((GUI_Node*)middle_subtree_root.node)->dirty = ((GUI_Node*)slider.node)->dirty;
 
@@ -3207,11 +3209,11 @@ int main(void)
 
 	// GUI initializaiton.
 
-	gui = test_gui;
+	//gui = test_gui;
 	//gui = test_gui__calculator;
 	//gui = test_gui__scrollbars;
 	//gui = test_gui__draw_command_using_sliders;
-	//gui = test_gui__subtree;
+	gui = test_gui__subtree;
 
 	X11_Window xwindow = {0};
 	int xinit_status = init_x11(&xwindow);