patch 8.2.3235: cannot use lambda in {} block in user command Commit: https://github.com/vim/vim/commit/6868634abd6a49b2dfd3a994a6da7d5911457a37 Author: Bram Moolenaar <Bram@vim.org> Date: Wed Jul 28 15:54:54 2021 +0200 patch 8.2.3235: cannot use lambda in {} block in user command Problem: Cannot use lambda in {} block in user command. (Martin Tournoij) Solution: Do not go over the end of the lambda.

--- a/src/testdir/test_usercommands.vim
+++ b/src/testdir/test_usercommands.vim
@@ -632,6 +632,13 @@ func Test_usercmd_with_block()
   call assert_equal('more', g:didmore)
   unlet g:didit
   unlet g:didmore
+  delcommand DoSomething
+
+  command DoMap {
+	echo [1, 2, 3]->map((_, v) => v + 1)
+    }
+  DoMap
+  delcommand DoMap
 
   let lines =<< trim END
       command DoesNotEnd {