patch 7.4.1488
Problem:    Not using key when result from hangul_string_convert() is NULL.
Solution:   Fall back to not converted string.
diff --git a/src/version.c b/src/version.c
index 3623a09..17fd888 100644
--- a/src/version.c
+++ b/src/version.c
@@ -744,6 +744,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1488,
+/**/
     1487,
 /**/
     1486,