Don't let it manually re-register a map file

CraftBukkit-Patches/0072-Allow-Disabling-of-1.6.3-Structure-Saving.patch

@@ -1,14 +1,14 @@
-From 6aa4aae7c4df947c6495129a665462324da1f45e Mon Sep 17 00:00:00 2001
+From 79440ab42fc945d2efec96be6ec3bb7667c18e71 Mon Sep 17 00:00:00 2001
 From: md_5 <md_5@live.com.au>
 Date: Sat, 21 Sep 2013 12:33:09 +1000
 Subject: [PATCH] Allow Disabling of 1.6.3 Structure Saving
 
 
 diff --git a/src/main/java/net/minecraft/server/StructureGenerator.java b/src/main/java/net/minecraft/server/StructureGenerator.java
-index ab4dc19..8fe8c13 100644
+index ab4dc19..cb8ff49 100644
 --- a/src/main/java/net/minecraft/server/StructureGenerator.java
 +++ b/src/main/java/net/minecraft/server/StructureGenerator.java
-@@ -178,7 +178,12 @@ public abstract class StructureGenerator extends WorldGenBase {
+@@ -178,7 +178,15 @@ public abstract class StructureGenerator extends WorldGenBase {
  
      private void a(World world) {
          if (this.e == null) {
@@ -17,6 +17,9 @@ index ab4dc19..8fe8c13 100644
 +            if ( world.spigotConfig.saveStructureInfo )
 +            {
 +                this.e = (WorldGenFeature) world.a( WorldGenFeature.class, this.a() );
++            } else
++            {
++                this.e = new WorldGenFeature( this.a() );
 +            }
 +            // Spigot End
              if (this.e == null) {