Fix client commands not working when using clickable commands.

patches/minecraft/net/minecraft/client/multiplayer/ClientPacketListener.java.patch

@@ -71,3 +71,11 @@
          SignableCommand<ClientSuggestionProvider> signablecommand = SignableCommand.of(this.commands.parse(p_250092_, this.suggestionsProvider));
          if (signablecommand.arguments().isEmpty()) {
              this.send(new ServerboundChatCommandPacket(p_250092_));
+@@ -2641,6 +_,7 @@
+     }
+ 
+     public void sendUnattendedCommand(String p_407213_, @Nullable Screen p_406262_) {
++        if (net.minecraftforge.client.ClientCommandHandler.runCommand(p_407213_)) return;
+         switch (this.verifyCommand(p_407213_)) {
+             case NO_ISSUES:
+                 this.send(new ServerboundChatCommandPacket(p_407213_));

src/test/generated/client_command/data/forge/test_instance/client_command/test_command.json

@@ -0,0 +1,7 @@
+{
+  "type": "minecraft:function",
+  "environment": "minecraft:default",
+  "function": "forge:client_command/test_command",
+  "max_ticks": 100,
+  "structure": "forge:empty3x3x3"
+}

src/test/generated/client_command_test/data/forge/test_instance/client_command_test/client_command_test.json

@@ -0,0 +1,7 @@
+{
+  "type": "minecraft:function",
+  "environment": "minecraft:default",
+  "function": "forge:client_command_test/client_command_test",
+  "max_ticks": 100,
+  "structure": "forge:empty3x3x3"
+}

src/test/java/net/minecraftforge/debug/client/ClientCommandTest.java

@@ -0,0 +1,50 @@
+/*
+ * Copyright (c) Forge Development LLC and contributors
+ * SPDX-License-Identifier: LGPL-2.1-only
+ */
+
+package net.minecraftforge.debug.client;
+
+import net.minecraft.client.Minecraft;
+import net.minecraft.commands.Commands;
+import net.minecraft.gametest.framework.GameTestHelper;
+import net.minecraftforge.client.event.RegisterClientCommandsEvent;
+import net.minecraftforge.fml.common.Mod;
+import net.minecraftforge.fml.javafmlmod.FMLJavaModLoadingContext;
+import net.minecraftforge.gametest.GameTest;
+import net.minecraftforge.gametest.GameTestNamespace;
+import net.minecraftforge.test.BaseTestMod;
+
+import java.util.Random;
+
+import com.mojang.brigadier.arguments.IntegerArgumentType;
+
+@GameTestNamespace("forge")
+@Mod(ClientCommandTest.MODID)
+public class ClientCommandTest extends BaseTestMod {
+    public static final String MODID = "client_command";
+    private static final String COMMAND = "testClientCommand";
+    private static int LAST_COMMAND = -1;
+
+    public ClientCommandTest(FMLJavaModLoadingContext context) {
+        super(context, false, false);
+        RegisterClientCommandsEvent.BUS.addListener(this::addCommand);
+    }
+
+    private void addCommand(RegisterClientCommandsEvent event) {
+        event.getDispatcher()
+            .register(Commands.literal(COMMAND)
+                .then(Commands.argument("id",  IntegerArgumentType.integer())
+                    .executes(ctx -> LAST_COMMAND = IntegerArgumentType.getInteger(ctx, "id"))
+                )
+            );
+    }
+
+    @GameTest
+    public static void testCommand(GameTestHelper helper) throws IllegalAccessException {
+        int random = new Random().nextInt();
+        Minecraft.getInstance().getConnection().sendUnattendedCommand(COMMAND + ' ' + random, null);
+        helper.assertTrue(LAST_COMMAND == random, "Client command did not execute");
+        helper.succeed();
+    }
+}

src/test/resources/client_command_test/META-INF/mods.toml

@@ -0,0 +1 @@
+clientSideOnly=true