patch 9.0.1457: no regression test for what patch 9.0.1333 fixes

Problem:    No regression test for what patch 9.0.1333 fixes.
Solution:   Extend existing test to cover the fixed problem. (issue #11930)
diff --git a/src/version.c b/src/version.c
index 35c1eea..ca4774d 100644
--- a/src/version.c
+++ b/src/version.c
@@ -696,6 +696,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1457,
+/**/
     1456,
 /**/
     1455,