Reset mainSupportingBlockPos on teleports

I cannot test this due to lack of hardware (took 30 minutes getting paper
updated and loaded into IJ on this machine...), however, this appears to be
doing what the folia equiv patch is

patches/server/0980-Reset-mainSupportingBlockPos-on-some-teleport-calls.patch

@@ -0,0 +1,36 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Shane Freeder <theboyetronic@gmail.com>
+Date: Wed, 5 Jul 2023 23:11:53 +0100
+Subject: [PATCH] Reset mainSupportingBlockPos on some teleport calls
+
+
+diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+index b777547cb9f8edf4e7b3c2cfb894f8cd1b1a35a5..5330840a44e1a4eb39554ac7d59f355d74476562 100644
+--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
++++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+@@ -1739,11 +1739,13 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Tic
+         }
+ 
+         this.internalTeleport(d0, d1, d2, f, f1, set);
++        this.player.mainSupportingBlockPos = Optional.empty();
+         return event.isCancelled(); // CraftBukkit - Return event status
+     }
+ 
+     public void teleport(Location dest) {
+         this.internalTeleport(dest.getX(), dest.getY(), dest.getZ(), dest.getYaw(), dest.getPitch(), Collections.emptySet());
++        this.player.mainSupportingBlockPos = Optional.empty();
+     }
+ 
+     public void internalTeleport(double d0, double d1, double d2, float f, float f1, Set<RelativeMovement> set) { // Paper
+diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+index 5b201d2c21f04e0223970035e0631f8f92ea0d3a..318a57f34d304fe00670eb207968138c1fe9d1fb 100644
+--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
++++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+@@ -1381,6 +1381,7 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
+         // Check if the fromWorld and toWorld are the same.
+         if (fromWorld == toWorld) {
+             entity.connection.internalTeleport(to.getX(), to.getY(), to.getZ(), to.getYaw(), to.getPitch(), relativeArguments); // Paper - Teleport API
++            entity.mainSupportingBlockPos = Optional.empty(); // Paper
+         } else {
+             // The respawn reason should never be used if the passed location is non null.
+             server.getHandle().respawn(entity, toWorld, true, to, !toWorld.paperConfig().environment.disableTeleportationSuffocationCheck, null); // Paper