patch 8.2.2798: Vim9: redir to variable with append does not accept an index Commit: https://github.com/vim/vim/commit/a369c3d9c1217cd932bc3d1751a8cff1f5aef1e4 Author: Bram Moolenaar <Bram@vim.org> Date: Wed Apr 21 16:00:10 2021 +0200 patch 8.2.2798: Vim9: redir to variable with append does not accept an index Problem: Vim9: redir to variable with append does not accept an index. Solution: Make the appending work.

--- a/src/testdir/test_vim9_cmd.vim
+++ b/src/testdir/test_vim9_cmd.vim
@@ -1230,6 +1230,11 @@ def Test_redir_to_var()
   redir END
   assert_equal({l: ["\ndict-list"]}, dl)
 
+  redir =>> d.redir
+    echo 'more'
+  redir END
+  assert_equal({redir: "\ndict\nmore"}, d)
+
   var lines =<< trim END
     redir => notexist
   END