Index: src/sort.c
===================================================================
--- src/sort.c.orig	2010-05-07 16:52:08.068491875 +0200
+++ src/sort.c	2010-05-07 16:53:44.704992155 +0200
@@ -2720,7 +2720,8 @@ 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;							\
             }								\
             								\