Tweak tab complete disabled to only disable completion of the /command section, and not any subsequent arguments to the command, such as player names or plugin provided completions.

CraftBukkit-Patches/0037-Allow-Disabling-of-Command-TabComplete.patch

@@ -1,11 +1,11 @@
-From 6aa34bd1ad851735520b469695f03a1994a7c2be Mon Sep 17 00:00:00 2001
+From 70929539b9364e87555da91424d189d0e70949d2 Mon Sep 17 00:00:00 2001
 From: md_5 <md_5@live.com.au>
 Date: Fri, 21 Jun 2013 18:05:54 +1000
 Subject: [PATCH] Allow Disabling of Command TabComplete
 
 
 diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
-index 6a38465..4d77259 100644
+index 6a38465..0633516 100644
 --- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
 +++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
 @@ -1398,6 +1398,13 @@ public final class CraftServer implements Server {
@@ -13,7 +13,7 @@ index 6a38465..4d77259 100644
  
      public List<String> tabCompleteCommand(Player player, String message) {
 +        // Spigot Start
-+        if ( !org.spigotmc.SpigotConfig.tabComplete )
++        if ( !org.spigotmc.SpigotConfig.tabComplete && !message.contains( " " ) )
 +        {
 +            return ImmutableList.of();
 +        }