Merge branch 'master' into pre/1.13

* master:
  clear current chunk and entity slice on chunk unload

Spigot-Server-Patches/Add-some-Debug-to-Chunk-Entity-slices.patch

@@ -9,7 +9,7 @@ This should hopefully avoid duplicate entities ever being created
 if the entity was to end up in 2 different chunk slices
 
 diff --git a/src/main/java/net/minecraft/server/Chunk.java b/src/main/java/net/minecraft/server/Chunk.java
-index 7f882bdca..4e32ae7db 100644
+index 982ab51f62..14e98fcedf 100644
 --- a/src/main/java/net/minecraft/server/Chunk.java
 +++ b/src/main/java/net/minecraft/server/Chunk.java
 @@ -0,0 +0,0 @@ public class Chunk implements IChunkAccess {
@@ -60,8 +60,16 @@ index 7f882bdca..4e32ae7db 100644
          this.markDirty();
          if (entity instanceof EntityItem) {
              itemCounts[i]--;
+@@ -0,0 +0,0 @@ public class Chunk implements IChunkAccess {
+                 }
+                 // Spigot End
+                 entity.setCurrentChunk(null); // Paper
++                entity.entitySlice = null; // Paper
+ 
+                 // Do not pass along players, as doing so can get them stuck outside of time.
+                 // (which for example disables inventory icon updates and prevents block breaking)
 diff --git a/src/main/java/net/minecraft/server/Entity.java b/src/main/java/net/minecraft/server/Entity.java
-index 184d46191..3a5b3f34a 100644
+index afbd846aad..181a9b7546 100644
 --- a/src/main/java/net/minecraft/server/Entity.java
 +++ b/src/main/java/net/minecraft/server/Entity.java
 @@ -0,0 +0,0 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, Ke

Spigot-Server-Patches/Auto-Save-Improvements.patch

@@ -64,7 +64,7 @@ index ec6b550ff6..499230af60 100644
 +    }
  }
 diff --git a/src/main/java/net/minecraft/server/Chunk.java b/src/main/java/net/minecraft/server/Chunk.java
-index c27073d27c..06d6814b83 100644
+index 74ff495ad4..7dd1887762 100644
 --- a/src/main/java/net/minecraft/server/Chunk.java
 +++ b/src/main/java/net/minecraft/server/Chunk.java
 @@ -0,0 +0,0 @@ public class Chunk implements IChunkAccess {
@@ -128,7 +128,7 @@ index 982e18f8af..1879c32381 100644
      public final MinecraftServer server;
      public final PlayerInteractManager playerInteractManager;
 diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
-index d25e5c508a..3447afcad8 100644
+index e3469cacff..02daa43c68 100644
 --- a/src/main/java/net/minecraft/server/MinecraftServer.java
 +++ b/src/main/java/net/minecraft/server/MinecraftServer.java
 @@ -0,0 +0,0 @@ public abstract class MinecraftServer implements IAsyncTaskHandler, IMojangStati

Spigot-Server-Patches/Avoid-hopper-searches-if-there-are-no-items.patch

@@ -14,7 +14,7 @@ And since minecart hoppers are used _very_ rarely near we can avoid alot of sear
 Combined, this adds up a lot.
 
 diff --git a/src/main/java/net/minecraft/server/Chunk.java b/src/main/java/net/minecraft/server/Chunk.java
-index 39aeabff74..ea7d82f099 100644
+index 476f5b4062..dc9664732b 100644
 --- a/src/main/java/net/minecraft/server/Chunk.java
 +++ b/src/main/java/net/minecraft/server/Chunk.java
 @@ -0,0 +0,0 @@ public class Chunk implements IChunkAccess {

Spigot-Server-Patches/Configurable-Chunk-Inhabited-Timer.patch

@@ -9,7 +9,7 @@ aspects of vanilla gameplay to this factor.
 For people who want all chunks to be treated equally, you can disable the timer.
 
 diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
-index b3b3baddc..613964ce0 100644
+index b3b3baddc0..613964ce04 100644
 --- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
 +++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
 @@ -0,0 +0,0 @@ public class PaperWorldConfig {
@@ -23,7 +23,7 @@ index b3b3baddc..613964ce0 100644
 +    }
  }
 diff --git a/src/main/java/net/minecraft/server/Chunk.java b/src/main/java/net/minecraft/server/Chunk.java
-index 5d1812ab0..695c6d3b7 100644
+index b8e3307f36..00f55355f6 100644
 --- a/src/main/java/net/minecraft/server/Chunk.java
 +++ b/src/main/java/net/minecraft/server/Chunk.java
 @@ -0,0 +0,0 @@ public class Chunk implements IChunkAccess {

Spigot-Server-Patches/Lighting-Queue.patch

@@ -43,7 +43,7 @@ index 68898d624f..4b36a0f053 100644
 +    }
  }
 diff --git a/src/main/java/net/minecraft/server/Chunk.java b/src/main/java/net/minecraft/server/Chunk.java
-index adf3dee2ef..eb7a41977f 100644
+index 7e5fa65ad7..476f5b4062 100644
 --- a/src/main/java/net/minecraft/server/Chunk.java
 +++ b/src/main/java/net/minecraft/server/Chunk.java
 @@ -0,0 +0,0 @@ public class Chunk implements IChunkAccess {
@@ -114,7 +114,7 @@ index aabdc9e2f0..d025d949e3 100644
          // Update neighbor counts
          for (int x = -2; x < 3; x++) {
 diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
-index ae17796ce2..1ac8d61cd9 100644
+index 6fbf841f06..9dc9668c45 100644
 --- a/src/main/java/net/minecraft/server/MinecraftServer.java
 +++ b/src/main/java/net/minecraft/server/MinecraftServer.java
 @@ -0,0 +0,0 @@ public abstract class MinecraftServer implements IAsyncTaskHandler, IMojangStati
@@ -233,7 +233,7 @@ index 0000000000..345cd58240
 +    }
 +}
 diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
-index bfe09a2055..c40ecbc0c3 100644
+index ada8376e8c..776882ba4f 100644
 --- a/src/main/java/net/minecraft/server/World.java
 +++ b/src/main/java/net/minecraft/server/World.java
 @@ -0,0 +0,0 @@ public abstract class World implements GeneratorAccess, IIBlockAccess, AutoClose

Spigot-Server-Patches/Store-reference-to-current-Chunk-for-Entity-and-Bloc.patch

@@ -8,7 +8,7 @@ This enables us a fast reference to the entities current chunk instead
 of having to look it up by hashmap lookups.
 
 diff --git a/src/main/java/net/minecraft/server/Chunk.java b/src/main/java/net/minecraft/server/Chunk.java
-index cd4fbee0ca..7837f1024c 100644
+index cd4fbee0ca..5aedd386fe 100644
 --- a/src/main/java/net/minecraft/server/Chunk.java
 +++ b/src/main/java/net/minecraft/server/Chunk.java
 @@ -0,0 +0,0 @@ public class Chunk implements IChunkAccess {
@@ -85,6 +85,14 @@ index cd4fbee0ca..7837f1024c 100644
      }
  
      public boolean c(BlockPosition blockposition) {
+@@ -0,0 +0,0 @@ public class Chunk implements IChunkAccess {
+                     }
+                 }
+                 // Spigot End
++                entity.setCurrentChunk(null); // Paper
+ 
+                 // Do not pass along players, as doing so can get them stuck outside of time.
+                 // (which for example disables inventory icon updates and prevents block breaking)
 diff --git a/src/main/java/net/minecraft/server/Entity.java b/src/main/java/net/minecraft/server/Entity.java
 index 38e606c131..5451ab07f5 100644
 --- a/src/main/java/net/minecraft/server/Entity.java