Attempt fixing PaperMC/Paper#9372

patches/server/0045-Fix-Paper-9372.patch

@@ -0,0 +1,42 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Kevin Raneri <kevin.raneri@gmail.com>
+Date: Thu, 22 Jun 2023 03:49:56 -0400
+Subject: [PATCH] Fix Paper 9372
+
+
+diff --git a/src/main/java/net/minecraft/server/level/ServerPlayer.java b/src/main/java/net/minecraft/server/level/ServerPlayer.java
+index 9d46536f80b5b3e6641fd377c02166a431edfd77..0a4b9921d00c76f8893c53a0bfe7bdf6055bf803 100644
+--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
++++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
+@@ -1245,6 +1245,7 @@ public class ServerPlayer extends Player {
+                 this.setServerLevel(worldserver);
+                 this.connection.teleport(exit); // CraftBukkit - use internal teleport without event
+                 this.connection.resetPosition();
++                this.mainSupportingBlockPos = Optional.empty(); // Pufferfish - Fix paper 9372
+                 worldserver.addDuringPortalTeleport(this);
+                 worldserver1.getProfiler().pop();
+                 this.triggerDimensionChangeTriggers(worldserver1);
+@@ -1907,6 +1908,7 @@ public class ServerPlayer extends Player {
+     public void moveTo(double x, double y, double z) {
+         super.moveTo(x, y, z);
+         this.connection.resetPosition();
++                this.mainSupportingBlockPos = Optional.empty(); // Pufferfish - Fix paper 9372
+     }
+
+     @Override
+@@ -2143,6 +2145,7 @@ public class ServerPlayer extends Player {
+
+             this.connection.send(new ClientboundSetCameraPacket(this.camera));
+             this.connection.resetPosition();
++                this.mainSupportingBlockPos = Optional.empty(); // Pufferfish - Fix paper 9372
+         }
+     }
+
+@@ -2595,6 +2598,7 @@ public class ServerPlayer extends Player {
+     public void forceSetPositionRotation(double x, double y, double z, float yaw, float pitch) {
+         this.moveTo(x, y, z, yaw, pitch);
+         this.connection.resetPosition();
++                this.mainSupportingBlockPos = Optional.empty(); // Pufferfish - Fix paper 9372
+     }
+
+     @Override