ensure reset EnderDragon boss event name (#8562)

patches/server/0937-ensure-reset-EnderDragon-boss-event-name.patch

@@ -0,0 +1,32 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Jake Potrebic <jake.m.potrebic@gmail.com>
+Date: Sat, 12 Nov 2022 10:08:58 -0800
+Subject: [PATCH] ensure reset EnderDragon boss event name
+
+Fix MC-257487
+
+diff --git a/src/main/java/net/minecraft/world/level/dimension/end/EndDragonFight.java b/src/main/java/net/minecraft/world/level/dimension/end/EndDragonFight.java
+index c36a543f091447ad50beb71741de3301e4fb81e3..a9052dd27005d244a96511fc5dbfa92f20a21f46 100644
+--- a/src/main/java/net/minecraft/world/level/dimension/end/EndDragonFight.java
++++ b/src/main/java/net/minecraft/world/level/dimension/end/EndDragonFight.java
+@@ -67,7 +67,8 @@ public class EndDragonFight {
+     private static final int GATEWAY_DISTANCE = 96;
+     public static final int DRAGON_SPAWN_Y = 128;
+     private static final Predicate<Entity> VALID_PLAYER = EntitySelector.ENTITY_STILL_ALIVE.and(EntitySelector.withinDistance(0.0D, 128.0D, 0.0D, 192.0D));
+-    public final ServerBossEvent dragonEvent = (ServerBossEvent)(new ServerBossEvent(Component.translatable("entity.minecraft.ender_dragon"), BossEvent.BossBarColor.PINK, BossEvent.BossBarOverlay.PROGRESS)).setPlayBossMusic(true).setCreateWorldFog(true);
++    private static final Component DEFAULT_BOSS_EVENT_NAME = Component.translatable("entity.minecraft.ender_dragon"); // Paper
++    public final ServerBossEvent dragonEvent = (ServerBossEvent)(new ServerBossEvent(DEFAULT_BOSS_EVENT_NAME, BossEvent.BossBarColor.PINK, BossEvent.BossBarOverlay.PROGRESS)).setPlayBossMusic(true).setCreateWorldFog(true); // Paper
+     public final ServerLevel level;
+     private final ObjectArrayList<Integer> gateways = new ObjectArrayList<>();
+     private final BlockPattern exitPortalPattern;
+@@ -440,6 +441,10 @@ public class EndDragonFight {
+             this.ticksSinceDragonSeen = 0;
+             if (dragon.hasCustomName()) {
+                 this.dragonEvent.setName(dragon.getDisplayName());
++                // Paper start - reset to default name
++            } else {
++                this.dragonEvent.setName(DEFAULT_BOSS_EVENT_NAME);
++                // Paper end
+             }
+         }
+