Index: trunk/src/action_helper.c
===================================================================
--- trunk/src/action_helper.c	(revision 1810)
+++ trunk/src/action_helper.c	(revision 1811)
@@ -161,7 +161,7 @@
  */
 void ClearWarnings()
 {
-	conf_core.editor.rat_warn = false;
+	conf_core.temp.rat_warn = false;
 	ALLPIN_LOOP(PCB->Data);
 	{
 		if (TEST_FLAG(WARNFLAG, pin)) {
@@ -486,7 +486,7 @@
 	void *ptr1, *ptr2, *ptr3;
 	int type;
 
-	if (conf_core.editor.rat_warn)
+	if (conf_core.temp.rat_warn)
 		ClearWarnings();
 	switch (conf_core.editor.mode) {
 	case ARROW_MODE:
Index: trunk/src/conf.c
===================================================================
--- trunk/src/conf.c	(revision 1810)
+++ trunk/src/conf.c	(revision 1811)
@@ -409,7 +409,8 @@
 
 static conf_field_clear(conf_native_t *f)
 {
-
+	if (strncmp(f->hash_path, "temp", 4) == 0)
+		return;
 	if (f->used > 0) {
 #define clr(field) memset(f->val.field, 0, sizeof(*(f->val.field)) * f->used)
 		switch(f->type) {
Index: trunk/src/conf_core.h
===================================================================
--- trunk/src/conf_core.h	(revision 1810)
+++ trunk/src/conf_core.h	(revision 1811)
@@ -11,6 +11,10 @@
 
 typedef struct {
 
+	struct temp {
+		CFT_BOOLEAN rat_warn;              /* rats nest has set warnings */
+	} temp;
+
 	struct editor {
 		CFT_UNIT grid_unit;                /* select whether you draw in mm or mil */
 		CFT_COORD grid;                    /* grid in pcb-units */
@@ -29,7 +33,6 @@
 		CFT_BOOLEAN save_last_command;     /* save the last command entered by user */
 		CFT_BOOLEAN save_in_tmp;           /* always save data in /tmp */
 		CFT_BOOLEAN draw_grid;             /* draw grid points */
-		CFT_BOOLEAN rat_warn;              /* rats nest has set warnings */
 		CFT_BOOLEAN stipple_polygons;      /* draw polygons with stipple */
 		CFT_BOOLEAN all_direction_lines;   /* enable lines to all directions */
 		CFT_BOOLEAN rubber_band_mode;      /* move, rotate use rubberband connections */
Index: trunk/src/find.c
===================================================================
--- trunk/src/find.c	(revision 1810)
+++ trunk/src/find.c	(revision 1811)
@@ -912,7 +912,7 @@
 	if (!TEST_FLAG(TheFlag, pin) && PV_TOUCH_PV(&i->pv, pin)) {
 		if (TEST_FLAG(HOLEFLAG, pin) || TEST_FLAG(HOLEFLAG, &i->pv)) {
 			SET_FLAG(WARNFLAG, pin);
-			conf_core.editor.rat_warn = true;
+			conf_core.temp.rat_warn = true;
 			if (pin->Element)
 				Message(_("WARNING: Hole too close to pin.\n"));
 			else
@@ -991,7 +991,7 @@
 	if (!TEST_FLAG(TheFlag, pv) && PinLineIntersect(pv, &i->line)) {
 		if (TEST_FLAG(HOLEFLAG, pv)) {
 			SET_FLAG(WARNFLAG, pv);
-			conf_core.editor.rat_warn = true;
+			conf_core.temp.rat_warn = true;
 			Message(_("WARNING: Hole too close to line.\n"));
 		}
 		else if (ADD_PV_TO_LIST(pv, LINE_TYPE, &i->line, FCT_COPPER))
@@ -1008,7 +1008,7 @@
 	if (!TEST_FLAG(TheFlag, pv) && IS_PV_ON_PAD(pv, &i->pad)) {
 		if (TEST_FLAG(HOLEFLAG, pv)) {
 			SET_FLAG(WARNFLAG, pv);
-			conf_core.editor.rat_warn = true;
+			conf_core.temp.rat_warn = true;
 			Message(_("WARNING: Hole too close to pad.\n"));
 		}
 		else if (ADD_PV_TO_LIST(pv, PAD_TYPE, &i->pad, FCT_COPPER))
@@ -1025,7 +1025,7 @@
 	if (!TEST_FLAG(TheFlag, pv) && IS_PV_ON_ARC(pv, &i->arc)) {
 		if (TEST_FLAG(HOLEFLAG, pv)) {
 			SET_FLAG(WARNFLAG, pv);
-			conf_core.editor.rat_warn = true;
+			conf_core.temp.rat_warn = true;
 			Message(_("WARNING: Hole touches arc.\n"));
 		}
 		else if (ADD_PV_TO_LIST(pv, ARC_TYPE, &i->arc, FCT_COPPER))
Index: trunk/src/flags.c
===================================================================
--- trunk/src/flags.c	(revision 1810)
+++ trunk/src/flags.c	(revision 1811)
@@ -304,7 +304,7 @@
 	,
 	{"drawgrid", FlagSETTINGS, OffsetOf(conf_core_t, editor.draw_grid)}
 	,
-	{"ratwarn", FlagSETTINGS, OffsetOf(conf_core_t, editor.rat_warn)}
+	{"ratwarn", FlagSETTINGS, OffsetOf(conf_core_t, temp.rat_warn)}
 	,
 	{"stipplepolygons", FlagSETTINGS, OffsetOf(conf_core_t, editor.stipple_polygons)}
 	,
Index: trunk/src/rats.c
===================================================================
--- trunk/src/rats.c	(revision 1810)
+++ trunk/src/rats.c	(revision 1811)
@@ -723,7 +723,7 @@
 	}
 
 	if (Warned)
-		conf_core.editor.rat_warn = true;
+		conf_core.temp.rat_warn = true;
 
 	if (changed) {
 		IncrementUndoSerialNumber();
Index: trunk/src/rats_act.c
===================================================================
--- trunk/src/rats_act.c	(revision 1810)
+++ trunk/src/rats_act.c	(revision 1811)
@@ -74,7 +74,7 @@
 	float len, small;
 
 	if (function) {
-		if (conf_core.editor.rat_warn)
+		if (conf_core.temp.rat_warn)
 			ClearWarnings();
 		switch (funchash_get(function, NULL)) {
 		case F_AllRats:
@@ -195,7 +195,7 @@
 {
 	char *function = ACTION_ARG(0);
 	if (function) {
-		if (conf_core.editor.rat_warn)
+		if (conf_core.temp.rat_warn)
 			ClearWarnings();
 		switch (funchash_get(function, NULL)) {
 		case F_AllRats: