patch 8.2.4822: setting ufunc to NULL twice

Problem:    Setting ufunc to NULL twice.
Solution:   Set ufunc to NULL in find_exported(). (closes #19275)

src/version.c

@@ -746,6 +746,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    4822,
 /**/
     4821,
 /**/