patch 8.0.0523: dv} deletes part of a multi-byte character.

Problem:    dv} deletes part of a multi-byte character. (Urtica Dioica)
Solution:   Include the whole character.

src/version.c

@@ -764,6 +764,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    523,
 /**/
     522,
 /**/