Index: src/sort.c
===================================================================
--- src/sort.c.orig	2010-05-04 17:27:49.103359264 +0200
+++ src/sort.c	2010-05-04 17:28:43.820359291 +0200
@@ -2540,7 +2540,8 @@ keycompare_mb (const struct line *a, con
 	     if (MBLENGTH == (size_t)-2 || MBLENGTH == (size_t)-1)	\
 	       STATE = state_bak;					\
 	     if (!ignore)						\
-	       COPY[NEW_LEN++] = TEXT[i++];				\
+	       COPY[NEW_LEN++] = TEXT[i];				\
+	     i++;							\
 	     continue;							\
 	   }								\
 	 								\