patch 9.1.0684: completion is inserted on Enter with "noselect"

Problem:  completion is inserted on Enter with "noselect"
          (Carman Fu)
Solution: check noselect before update compl_shown_match
          (glepnir)

fixes: #15526
closes: #15530

Signed-off-by: glepnir <glephunter@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/version.c b/src/version.c
index 8d26a0d..12dae15 100644
--- a/src/version.c
+++ b/src/version.c
@@ -705,6 +705,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    684,
+/**/
     683,
 /**/
     682,