patch 9.0.1858: [security] heap use after free in ins_compl_get_exp()

Problem:  heap use after free in ins_compl_get_exp()
Solution: validate buffer before accessing it

Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/version.c b/src/version.c
index 13d5d69..b604b57 100644
--- a/src/version.c
+++ b/src/version.c
@@ -700,6 +700,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1858,
+/**/
     1857,
 /**/
     1856,