patch 8.1.1711: listener callback called at the wrong moment

Problem:    Listener callback called at the wrong moment
Solution:   Invoke listeners before calling ml_delete_int(). (closes #4657)
diff --git a/src/version.c b/src/version.c
index 74a16fe..6c6550b 100644
--- a/src/version.c
+++ b/src/version.c
@@ -778,6 +778,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1711,
+/**/
     1710,
 /**/
     1709,