Fix sourceterm for dumping dot file

controller/ec/block_stoeber.c

@@ -723,6 +723,9 @@ static struct controller_block *block_stoeber_create(char *name, int argc, va_li
 	   stoeber_tx structs already. */
 	stoeber->outputs = stoeber_rx->outputs;
 	stoeber->output = stoeber_rx->output;
+	for (i = 0; i < controller->outputs; i++) {
+		controller->output[i].sourceterm = &controller_rx->output[i];
+	}
 
 	if (controller_block_interm_list_init(stoeber_tx, interms))
 		goto err_tx_input;

controller/vesp/block_vesp_controller.c

@@ -207,7 +207,7 @@ static struct controller_block * block_vesp_controller_create(char *name,
 	controller_rx->calculate = calculate_controller_rx;
 	controller_tx->calculate = calculate_controller_tx;
 
-	if (controller_block_outterm_list_init(controller, outterms))
+	if (controller_block_outterm_list_init(controller_rx, outterms))
 		goto err_block;
 
 	if (controller_block_interm_list_init(controller_tx, interms))
@@ -215,7 +215,10 @@ static struct controller_block * block_vesp_controller_create(char *name,
 
 	controller->outputs = controller_rx->outputs;
 	controller->output = controller_rx->output;
-
+	for (i = 0; i < controller->outputs; i++) {
+		controller->output[i].sourceterm = &controller_rx->output[i];
+	}
+	
 	controller->inputs = controller_tx->inputs;
 	controller->input = calloc(controller->inputs, sizeof(struct controller_block_interm));
 	if (!controller->input)