More involved workaround for vehicle event cancellation

Spigot-Server-Patches/0083-Remove-Metadata-on-reload.patch

@@ -0,0 +1,30 @@
+From 96f359acc90ad1aaa25693823ede270720e1536b Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Fri, 18 Mar 2016 13:50:14 -0400
+Subject: [PATCH] Remove Metadata on reload
+
+Metadata is not meant to persist reload as things break badly with non primitive types
+This will remove metadata on reload so it does not crash everything if a plugin uses it.
+
+diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+index 20a8ef7..e957ed0 100644
+--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
++++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+@@ -729,6 +729,14 @@ public final class CraftServer implements Server {
+             world.paperConfig.init(); // Paper
+         }
+ 
++        // Paper start
++        for (Plugin plugin : pluginManager.getPlugins()) {
++            entityMetadata.removeAll(plugin);
++            worldMetadata.removeAll(plugin);
++            playerMetadata.removeAll(plugin);
++        }
++        // Paper end
++
+         pluginManager.clearPlugins();
+         commandMap.clearCommands();
+         resetRecipes();
+-- 
+2.8.0
+