patch 8.2.2472: crash when using command line window in an autocommand

Problem:    Crash when using command line window in an autocommand.
            (houyunsong)
Solution:   Save and restore au_new_curbuf.
diff --git a/src/version.c b/src/version.c
index 2beec07..1b0faae 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2472,
+/**/
     2471,
 /**/
     2470,