From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Shane Freeder <theboyetronic@gmail.com>
Date: Mon, 26 Apr 2021 01:27:08 +0100
Subject: [PATCH] Send empty commands if tab completion is disabled


diff --git a/src/main/java/net/minecraft/commands/Commands.java b/src/main/java/net/minecraft/commands/Commands.java
index e38f1d972d87f33a5f28459aa988e09f24614453..7acd7f60327106d55e8f48247650bc0064dd1b58 100644
--- a/src/main/java/net/minecraft/commands/Commands.java
+++ b/src/main/java/net/minecraft/commands/Commands.java
@@ -453,7 +453,12 @@ public class Commands {
     }
 
     public void sendCommands(ServerPlayer player) {
-        if ( org.spigotmc.SpigotConfig.tabComplete < 0 ) return; // Spigot
+        // Paper start - Send empty commands if tab completion is disabled
+        if (org.spigotmc.SpigotConfig.tabComplete < 0) {
+            player.connection.send(new ClientboundCommandsPacket(new RootCommandNode<>()));
+            return;
+        }
+        // Paper end - Send empty commands if tab completion is disabled
         // CraftBukkit start
         // Register Vanilla commands into builtRoot as before
         // Paper start - Perf: Async command map building