From e4c6cfba0a9d7a230136cd8c443ae90da6de020c Mon Sep 17 00:00:00 2001
From: Shane Freeder <theboyetronic@gmail.com>
Date: Sat, 10 Nov 2018 05:15:21 +0000
Subject: [PATCH] Fix SpongeAbsortEvent handling

Only process drops when the block is actually going to be removed

diff --git a/src/main/java/net/minecraft/server/BlockSponge.java b/src/main/java/net/minecraft/server/BlockSponge.java
index 987af9c3d..adb863eb5 100644
--- a/src/main/java/net/minecraft/server/BlockSponge.java
+++ b/src/main/java/net/minecraft/server/BlockSponge.java
@@ -100,7 +100,11 @@ public class BlockSponge extends Block {
                 Material material = iblockdata.getMaterial();
 
                 if (material == Material.WATER_PLANT || material == Material.REPLACEABLE_WATER_PLANT) {
-                    iblockdata.a(world, blockposition2, 0);
+                    // Paper start
+                    if (block.getHandle().getMaterial() == Material.AIR) {
+                        iblockdata.dropNaturally(world, blockposition2, 0);
+                    }
+                    // Paper end
                 }
 
                 world.setTypeAndData(blockposition2, block.getHandle(), block.getFlag());
diff --git a/src/main/java/net/minecraft/server/IBlockData.java b/src/main/java/net/minecraft/server/IBlockData.java
index 2d855aae6..bc345a2c3 100644
--- a/src/main/java/net/minecraft/server/IBlockData.java
+++ b/src/main/java/net/minecraft/server/IBlockData.java
@@ -223,6 +223,7 @@ public interface IBlockData extends IBlockDataHolder<IBlockData> {
         this.getBlock().a(this, world, blockposition, entity);
     }
 
+    default void dropNaturally(World world, BlockPosition blockPosition, int i) { a(world, blockPosition, i);} // Paper - OBFHELPER
     default void a(World world, BlockPosition blockposition, int i) {
         this.dropNaturally(world, blockposition, 1.0F, i);
     }
-- 
2.19.1