From c8b481c1cbefd8df47f43036630d918772939dc7 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 cbc8e8d139..cda6f2b732 100644
--- a/src/main/java/net/minecraft/server/BlockSponge.java
+++ b/src/main/java/net/minecraft/server/BlockSponge.java
@@ -106,7 +106,11 @@ public class BlockSponge extends Block {
                     } else if (iblockdata.getBlock() instanceof BlockFluids) {
                         // NOP
                     } else 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());
@@ -117,3 +121,4 @@ public class BlockSponge extends Block {
         return i > 0;
     }
 }
+
diff --git a/src/main/java/net/minecraft/server/IBlockData.java b/src/main/java/net/minecraft/server/IBlockData.java
index 08a5acb0ac..aa3547690a 100644
--- a/src/main/java/net/minecraft/server/IBlockData.java
+++ b/src/main/java/net/minecraft/server/IBlockData.java
@@ -236,6 +236,7 @@ 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);
     }
-- 
2.20.1