updated for version 7.3.489

Problem:    CTRL-] in Insert mode does not expand abbreviation when used in a
            mapping. (Yichao Zhou)
Solution:   Special case using CTRL-]. (Christian Brabandt)

src/edit.c

@@ -1455,13 +1455,16 @@ normalchar:
 		    Insstart_blank_vcol = get_nolist_virtcol();
 	    }
 
-	    if (vim_iswordc(c) || !echeck_abbr(
+	    /* Insert a normal character and check for abbreviations on a
+	     * special character.  Let CTRL-] expand abbreviations without
+	     * inserting it. */
+	    if (vim_iswordc(c) || (!echeck_abbr(
 #ifdef FEAT_MBYTE
 			/* Add ABBR_OFF for characters above 0x100, this is
 			 * what check_abbr() expects. */
 			(has_mbyte && c >= 0x100) ? (c + ABBR_OFF) :
 #endif
-			c))
+                       c) && c != Ctrl_RSB))
 	    {
 		insert_special(c, FALSE, FALSE);
 #ifdef FEAT_RIGHTLEFT

src/getchar.c

@@ -4352,8 +4352,9 @@ check_abbr(c, ptr, col, mincol)
 
     if (typebuf.tb_no_abbr_cnt)	/* abbrev. are not recursive */
 	return FALSE;
-    if ((KeyNoremap & (RM_NONE|RM_SCRIPT)) != 0)
-	/* no remapping implies no abbreviation */
+
+    /* no remapping implies no abbreviation, except for CTRL-] */
+    if ((KeyNoremap & (RM_NONE|RM_SCRIPT)) != 0 && c != Ctrl_RSB)
 	return FALSE;
 
     /*

src/version.c

@@ -714,6 +714,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    489,
 /**/
     488,
 /**/