Paper/patches/server/0291-Fix-SpongeAbsortEvent-handling.patch

From 0000000000000000000000000000000000000000 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/world/level/block/SpongeBlock.java b/src/main/java/net/minecraft/world/level/block/SpongeBlock.java
index b8ae2000a44469245c6ba3cda0c0e87b07156b06..1ef8eadd4e59f2e5d2bbd84f6f9bcf37b59db5bd 100644
--- a/src/main/java/net/minecraft/world/level/block/SpongeBlock.java
+++ b/src/main/java/net/minecraft/world/level/block/SpongeBlock.java
@@ -130,8 +130,11 @@ public class SpongeBlock extends Block {
                         // NOP
                     } else if (material == Material.WATER_PLANT || material == Material.REPLACEABLE_WATER_PLANT) {
                         BlockEntity tileentity = iblockdata.hasBlockEntity() ? world.getBlockEntity(blockposition2) : null;
-
-                        dropResources(iblockdata, world, blockposition2, tileentity);
+                        // Paper start
+                        if (block.getHandle().getMaterial() == Material.AIR) {
+                            dropResources(iblockdata, world, blockposition2, tileentity);
+                        }
+                        // Paper end
                     }
                 }
                 world.setBlock(blockposition2, block.getHandle(), block.getFlag());