diff -r c61da758a9a2 src/getchar.c
--- a/src/getchar.c	Wed Apr 24 18:34:45 2013 +0200
+++ b/src/getchar.c	Fri Apr 26 10:28:36 2013 +0200
@@ -4616,9 +4616,21 @@
 	    }
 	    else
 	    {
+#ifdef FEAT_MBYTE
+		int len  = mb_char2len(PTR2CHAR(s));
+		int len2 = mb_ptr2len(s);
+#endif
 		/* Add character, possibly multi-byte to destination, escaping
 		 * CSI and K_SPECIAL. */
 		d = add_char2buf(PTR2CHAR(s), d);
+#ifdef FEAT_MBYTE
+		while (len < len2)
+		{
+		    /* add following combining char */
+		    d = add_char2buf(PTR2CHAR(s+len), d);
+		    len += mb_char2len(PTR2CHAR(s+len));
+		}
+#endif
 		mb_ptr_adv(s);
 	    }
 	}
diff -r c61da758a9a2 src/testdir/test44.in
--- a/src/testdir/test44.in	Wed Apr 24 18:34:45 2013 +0200
+++ b/src/testdir/test44.in	Fri Apr 26 10:28:36 2013 +0200
@@ -32,7 +32,9 @@
 x:" Test backwards search from a multi-byte char
 /x
 x?.
-x:?^1?,$w! test.out
+x:let @w=':%s#comb[i]nations#œ̄ṣ́m̥̄ᾱ̆́#g'
+:@w
+:?^1?,$w! test.out
 :e! test.out
 G:put =matchstr(\"אבגד\", \".\", 0, 2) " ב
 :put =matchstr(\"אבגד\", \"..\", 0, 2) " בג
@@ -61,3 +63,4 @@
 h AÀÁÂÃÄÅĀĂĄǍǞǠẢ BḂḆ CÇĆĈĊČ DĎĐḊḎḐ EÈÉÊËĒĔĖĘĚẺẼ FḞ GĜĞĠĢǤǦǴḠ HĤĦḢḦḨ IÌÍÎÏĨĪĬĮİǏỈ JĴ KĶǨḰḴ LĹĻĽĿŁḺ MḾṀ NÑŃŅŇṄṈ OÒÓÔÕÖØŌŎŐƠǑǪǬỎ PṔṖ Q RŔŖŘṘṞ SŚŜŞŠṠ TŢŤŦṪṮ UÙÚÛÜŨŪŬŮŰŲƯǓỦ VṼ WŴẀẂẄẆ XẊẌ YÝŶŸẎỲỶỸ ZŹŻŽƵẐẔ
 i aàáâãäåāăąǎǟǡả bḃḇ cçćĉċč dďđḋḏḑ eèéêëēĕėęěẻẽ fḟ gĝğġģǥǧǵḡ hĥħḣḧḩẖ iìíîïĩīĭįǐỉ jĵǰ kķǩḱḵ lĺļľŀłḻ mḿṁ nñńņňʼnṅṉ oòóôõöøōŏőơǒǫǭỏ pṕṗ q rŕŗřṙṟ sśŝşšṡ tţťŧṫṯẗ uùúûüũūŭůűųưǔủ vṽ wŵẁẃẅẇẘ xẋẍ yýÿŷẏẙỳỷỹ zźżžƶẑẕ
 j 0123❤x
+k combinations
diff -r c61da758a9a2 src/testdir/test44.ok
--- a/src/testdir/test44.ok	Wed Apr 24 18:34:45 2013 +0200
+++ b/src/testdir/test44.ok	Fri Apr 26 10:28:36 2013 +0200
@@ -17,6 +17,7 @@
 h AÀÁÂÃÄÅĀĂĄǍǞǠẢ BḂḆ CÇĆĈĊČ DĎĐḊḎḐ EÈÉÊËĒĔĖĘĚẺẼ FḞ GĜĞĠĢǤǦǴḠ HĤĦḢḦḨ IÌÍÎÏĨĪĬĮİǏỈ JĴ KĶǨḰḴ LĹĻĽĿŁḺ MḾṀ NÑŃŅŇṄṈ OÒÓÔÕÖØŌŎŐƠǑǪǬỎ PṔṖ Q RŔŖŘṘṞ SŚŜŞŠṠ TŢŤŦṪṮ UÙÚÛÜŨŪŬŮŰŲƯǓỦ VṼ WŴẀẂẄẆ XẊẌ YÝŶŸẎỲỶỸ ZŹŻŽƵẐ
 i aàáâãäåāăąǎǟǡả bḃḇ cçćĉċč dďđḋḏḑ eèéêëēĕėęěẻẽ fḟ gĝğġģǥǧǵḡ hĥħḣḧḩẖ iìíîïĩīĭįǐỉ jĵǰ kķǩḱḵ lĺļľŀłḻ mḿṁ nñńņňʼnṅṉ oòóôõöøōŏőơǒǫǭỏ pṕṗ q rŕŗřṙṟ sśŝşšṡ tţťŧṫṯẗ uùúûüũūŭůűųưǔủ vṽ wŵẁẃẅẇẘ xẋẍ yýÿŷẏẙỳỷỹ zźżžƶẑ
 j 012❤
+k œ̄ṣ́m̥̄ᾱ̆́
 ב
 בג
 א