Index: trunk/src/select.c
===================================================================
--- trunk/src/select.c	(revision 12378)
+++ trunk/src/select.c	(revision 12379)
@@ -552,6 +552,9 @@
 	if (PCB_FLAG_TEST(PCB_FLAG_SELECTED, obj) == ctx->flag) /* cheap check on the flag: don't do anything if the flag is already right */
 		return PCB_R_DIR_NOT_FOUND;
 
+	if (PCB_FLAG_TEST(PCB_FLAG_LOCK, obj) == pcb_true)
+		return PCB_R_DIR_NOT_FOUND;
+
 	if (!pcb_obj_near_box(obj, &ctx->box)) /* detailed box matching */
 		return PCB_R_DIR_NOT_FOUND;