1 files changed, 7 insertions, 3 deletions
diff --git a/runtime/lua/vim/_extui.lua b/runtime/lua/vim/_extui.lua
index d27d665c15..1b9d81b091 100644
--- a/runtime/lua/vim/_extui.lua
+++ b/runtime/lua/vim/_extui.lua
@@ -40,9 +40,6 @@ local M = {}
 
 local function ui_callback(event, ...)
   local handler = ext.msg[event] or ext.cmd[event]
-  if not handler then
-    return
-  end
   ext.tab_check_wins()
   handler(...)
   api.nvim__redraw({
@@ -59,6 +56,9 @@ function M.enable(opts)
   if opts.msg then
     vim.validate('opts.msg.pos', opts.msg.pos, 'nil', true, 'nil: "pos" moved to opts.target')
     vim.validate('opts.msg.box', opts.msg.box, 'nil', true, 'nil: "timeout" moved to opts.msg')
+    vim.validate('opts.msg.target', opts.msg.target, function(tar)
+      return tar == 'cmd' or tar == 'msg'
+    end, "'cmd'|'msg'")
   end
   ext.cfg = vim.tbl_deep_extend('keep', opts, ext.cfg)
 
@@ -76,11 +76,15 @@ function M.enable(opts)
   end
 
   vim.ui_attach(ext.ns, { ext_messages = true, set_cmdheight = false }, function(event, ...)
+    if not (ext.msg[event] or ext.cmd[event]) then
+      return
+    end
     if vim.in_fast_event() then
       scheduled_ui_callback(event, ...)
     else
       ui_callback(event, ...)
     end
+    return true
   end)
 
   -- Use MsgArea and hide search highlighting in the cmdline window.