GetBlocks should default to air not reserved

worldedit-bukkit/src/main/java/com/boydti/fawe/bukkit/adapter/mc1_14/BukkitGetBlocks_1_14.java

@@ -563,10 +563,13 @@ public class BukkitGetBlocks_1_14 extends CharGetBlocks {
         ChunkSection section = getSections()[layer];
         // Section is null, return empty array
         if (section == null) {
-            return FaweCache.IMP.EMPTY_CHAR_4096;
+            data = new char[4096];
+            Arrays.fill(data, (char) 1);
+            return data;
         }
         if (data == null || data == FaweCache.IMP.EMPTY_CHAR_4096) {
             data = new char[4096];
+            Arrays.fill(data, (char) 1);
         }
         DelegateLock lock = BukkitAdapter_1_14.applyLock(section);
         synchronized (lock) {

worldedit-bukkit/src/main/java/com/boydti/fawe/bukkit/adapter/mc1_15_2/BukkitGetBlocks_1_15_2.java

@@ -581,10 +581,13 @@ public class BukkitGetBlocks_1_15_2 extends CharGetBlocks {
         ChunkSection section = getSections()[layer];
         // Section is null, return empty array
         if (section == null) {
-            return FaweCache.IMP.EMPTY_CHAR_4096;
+            data = new char[4096];
+            Arrays.fill(data, (char) 1);
+            return data;
         }
         if (data == null || data == FaweCache.IMP.EMPTY_CHAR_4096) {
             data = new char[4096];
+            Arrays.fill(data, (char) 1);
         }
         DelegateLock lock = BukkitAdapter_1_15_2.applyLock(section);
         synchronized (lock) {

worldedit-bukkit/src/main/java/com/boydti/fawe/bukkit/adapter/mc1_16_1/BukkitGetBlocks_1_16_1.java

@@ -552,10 +552,13 @@ public class BukkitGetBlocks_1_16_1 extends CharGetBlocks {
         ChunkSection section = getSections()[layer];
         // Section is null, return empty array
         if (section == null) {
-            return FaweCache.IMP.EMPTY_CHAR_4096;
+            data = new char[4096];
+            Arrays.fill(data, (char) 1);
+            return data;
         }
         if (data == null || data == FaweCache.IMP.EMPTY_CHAR_4096) {
             data = new char[4096];
+            Arrays.fill(data, (char) 1);
         }
         DelegateLock lock = BukkitAdapter_1_16_1.applyLock(section);
         synchronized (lock) {

worldedit-core/src/main/java/com/boydti/fawe/beta/implementation/blocks/CharGetBlocks.java

@@ -2,12 +2,12 @@ package com.boydti.fawe.beta.implementation.blocks;
 
 import com.boydti.fawe.beta.IChunkGet;
 import com.boydti.fawe.beta.IChunkSet;
-import com.sk89q.worldedit.extent.Extent;
 import com.sk89q.worldedit.world.block.BaseBlock;
 import com.sk89q.worldedit.world.block.BlockState;
-import com.sk89q.worldedit.world.block.BlockTypes;
 import com.sk89q.worldedit.world.block.BlockTypesCache;
 
+import java.util.Arrays;
+
 public abstract class CharGetBlocks extends CharBlocks implements IChunkGet {
 
     @Override
@@ -25,6 +25,14 @@ public abstract class CharGetBlocks extends CharBlocks implements IChunkGet {
         return true;
     }
 
+    public char[] update(int layer, char[] data) {
+        if (data == null) {
+            return new char[4096];
+        }
+        Arrays.fill(data, (char) 1);
+        return data;
+    }
+
     @Override
     public boolean trim(boolean aggressive, int layer) {
         sections[layer] = EMPTY;