Index: line.c
===================================================================
--- line.c	(revision 3349)
+++ line.c	(revision 3350)
@@ -437,8 +437,10 @@
 	if (XOR(r1 > r2, shift)) {
 		if (conf_core.editor.line_refraction != 0) {
 			if (shift) {
-				conf_setf(CFR_DESIGN, "editor/line_refraction", -1, "%d", 2);
-				printf("line_refraction is set to: %d\n", conf_core.editor.line_refraction);
+				if (conf_core.editor.line_refraction==1) {
+					conf_setf(CFR_DESIGN, "editor/line_refraction", -1, "%d", 2);
+					printf("line_refraction is set to: %d\n", conf_core.editor.line_refraction);
+					}
 			}
 			else{
 				conf_setf(CFR_DESIGN, "editor/line_refraction", -1, "%d", 1);
@@ -451,8 +453,10 @@
 	else {
 		if (conf_core.editor.line_refraction !=0) {
 			if (shift) {
+				if (conf_core.editor.line_refraction==2) {
 				conf_setf(CFR_DESIGN, "editor/line_refraction", -1, "%d", 1);
 				printf("line_refraction is set to: %d\n", conf_core.editor.line_refraction);
+				}
 			}
 			else{
 				conf_setf(CFR_DESIGN, "editor/line_refraction", -1, "%d", 2);