vim: Import v8.2.3429

* 8.2.3429: leaking memory when assigning to list or dict
* 8.2.3428: using freed memory when replacing
* 8.2.3427: double free when list is copied
* 8.2.3426: crash when deleting a listener in a listener callback
* 8.2.3425: warning for using uninitialized variable

Author: chrisbra

gitlog.txt

@@ -1 +1 @@
-* [8.2.3424](https://github.com/vim/vim/commit/f14b8ba1373f569705cb80419248054100b02360): a sequence of spaces is hard to see in list mode
+* [8.2.3429](https://github.com/vim/vim/commit/464393a6961d9b9de2bfe9c05f8e2ae5bdec0293): leaking memory when assigning to list or dict\n* [8.2.3428](https://github.com/vim/vim/commit/35a9a00afcb20897d462a766793ff45534810dc3): using freed memory when replacing\n* [8.2.3427](https://github.com/vim/vim/commit/b3bf33a7b227df871834e816c4ce4b2706b56bea): double free when list is copied\n* [8.2.3426](https://github.com/vim/vim/commit/4b4b1b84eee70b74fa3bb57624533c65bafd8428): crash when deleting a listener in a listener callback\n* [8.2.3425](https://github.com/vim/vim/commit/56e14698b45a9c4ef8fa65c55c9bfe86fbb3d6bf): warning for using uninitialized variable