Index: trunk/src/board.c
===================================================================
--- trunk/src/board.c	(revision 32238)
+++ trunk/src/board.c	(revision 32239)
@@ -34,6 +34,7 @@
 #include <librnd/core/compat_misc.h>
 #include <librnd/core/actions.h>
 #include <librnd/core/paths.h>
+#include <librnd/core/hid_menu.h>
 #include <librnd/poly/rtree.h>
 #include "undo.h"
 #include "draw.h"
@@ -115,7 +116,9 @@
 
 	dpcb = -1;
 	pcb_io_err_inhibit_inc();
+	rnd_hid_menu_merge_inhibit_inc();
 	rnd_conf_list_foreach_path_first(NULL, dpcb, &conf_core.rc.default_pcb_file, pcb_load_pcb(__path__, NULL, rnd_false, 1 | 0x10 | inh));
+	rnd_hid_menu_merge_inhibit_dec();
 	pcb_io_err_inhibit_dec();
 
 	if (dpcb != 0) { /* no default PCB in file, use embedded version */
Index: trunk/src/plug_io.c
===================================================================
--- trunk/src/plug_io.c	(revision 32238)
+++ trunk/src/plug_io.c	(revision 32239)
@@ -60,6 +60,7 @@
 #include <librnd/core/actions.h>
 #include <librnd/core/rnd_printf.h>
 #include <librnd/core/plugins.h>
+#include <librnd/core/hid_menu.h>
 #include "event.h"
 #include <librnd/core/compat_misc.h>
 #include "route_style.h"
@@ -539,6 +540,7 @@
 	pcb_board_t *newPCB = pcb_board_new_(rnd_false);
 	pcb_board_t *oldPCB;
 	rnd_conf_role_t settings_dest;
+	int pres;
 #ifdef DEBUG
 	double elapsed;
 	clock_t start, end;
@@ -562,7 +564,11 @@
 	}
 
 	/* new data isn't added to the undo list */
-	if (!pcb_parse_pcb(PCB, new_filename, fmt, settings_dest, how & 0x10)) {
+	rnd_hid_menu_merge_inhibit_inc();
+	pres = pcb_parse_pcb(PCB, new_filename, fmt, settings_dest, how & 0x10);
+	rnd_hid_menu_merge_inhibit_dec();
+
+	if (!pres) {
 		pcb_board_remove(oldPCB);
 
 		pcb_board_new_postproc(PCB, 0);