Several fixes and new api for experience merging/stacking (#9242)

patches/server/0962-Disable-memory-reserve-allocating.patch

@@ -0,0 +1,19 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Warrior <50800980+Warriorrrr@users.noreply.github.com>
+Date: Thu, 18 Jan 2024 23:25:09 +0100
+Subject: [PATCH] Disable memory reserve allocating
+
+
+diff --git a/src/main/java/net/minecraft/CrashReport.java b/src/main/java/net/minecraft/CrashReport.java
+index 06c514b2d0674cd7df6692981f020437ea0f2f91..bcb6a3b3cd17ce5db9aaf6bd3ec7a0ec1b44b979 100644
+--- a/src/main/java/net/minecraft/CrashReport.java
++++ b/src/main/java/net/minecraft/CrashReport.java
+@@ -250,7 +250,7 @@ public class CrashReport {
+     }
+ 
+     public static void preload() {
+-        MemoryReserve.allocate();
++        // MemoryReserve.allocate(); // Paper - Disable memory reserve allocating
+         (new CrashReport("Don't panic!", new Throwable())).getFriendlyReport();
+     }
+ }