fix missed break statement and enum check on dupe uuid resolve

Spigot-Server-Patches/Duplicate-UUID-Resolve-Option.patch

@@ -33,7 +33,7 @@ But for those who are ok with leaving this inconsistent behavior, you may use WA
 It is recommended you regenerate the entities, as these were legit entities, and deserve your love.
 
 diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
-index 14c8edeffc..46ec852b6c 100644
+index 14c8edeffc..b373bba864 100644
 --- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
 +++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
 @@ -0,0 +0,0 @@ public class PaperWorldConfig {
@@ -52,6 +52,7 @@ index 14c8edeffc..46ec852b6c 100644
 +            case "saferegenerate":
 +                duplicateUUIDMode = DuplicateUUIDMode.SAFE_REGEN;
 +                log("Duplicate UUID Resolve: Safer Regenerate New UUID (Delete likely duplicates)");
++                break;
 +            case "regen":
 +            case "regenerate":
 +                duplicateUUIDMode = DuplicateUUIDMode.REGEN;
@@ -82,7 +83,7 @@ index 14c8edeffc..46ec852b6c 100644
 +    }
  }
 diff --git a/src/main/java/net/minecraft/server/Chunk.java b/src/main/java/net/minecraft/server/Chunk.java
-index 4757081090..4018410485 100644
+index 4757081090..8cd2ed85bc 100644
 --- a/src/main/java/net/minecraft/server/Chunk.java
 +++ b/src/main/java/net/minecraft/server/Chunk.java
 @@ -0,0 +0,0 @@
@@ -118,7 +119,7 @@ index 4757081090..4018410485 100644
              List entityslice = aentityslice[j]; // Spigot
 +            // Paper start
 +            DuplicateUUIDMode mode = world.paperConfig.duplicateUUIDMode;
-+            if (mode == DuplicateUUIDMode.WARN | mode == DuplicateUUIDMode.DELETE || mode == DuplicateUUIDMode.REGEN) {
++            if (mode == DuplicateUUIDMode.WARN | mode == DuplicateUUIDMode.DELETE || mode == DuplicateUUIDMode.REGEN || mode == DuplicateUUIDMode.SAFE_REGEN) {
 +                Map<UUID, Entity> thisChunk = new HashMap<>();
 +                for (Iterator<Entity> iterator = ((List<Entity>) entityslice).iterator(); iterator.hasNext(); ) {
 +                    Entity entity = iterator.next();
@@ -176,7 +177,7 @@ index 7b856cad91..eb8904a728 100644
          this.uniqueID = uuid;
          this.ar = this.uniqueID.toString();
 diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
-index d5cd289c21..57217bec2b 100644
+index a01488e985..3012768cb9 100644
 --- a/src/main/java/net/minecraft/server/World.java
 +++ b/src/main/java/net/minecraft/server/World.java
 @@ -0,0 +0,0 @@ public abstract class World implements IBlockAccess {