From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Sun, 10 Jun 2018 01:18:49 -0400
Subject: [PATCH] Unset Ignited flag on cancel of Explosion Event

Otherwise the creeper infinite explodes

diff --git a/src/main/java/net/minecraft/world/entity/monster/Creeper.java b/src/main/java/net/minecraft/world/entity/monster/Creeper.java
index 638b80006138ca7be44abfa69f31eccb2035ffac..bf7ddca34c8d9834a5b923fab30a605afa5f337a 100644
--- a/src/main/java/net/minecraft/world/entity/monster/Creeper.java
+++ b/src/main/java/net/minecraft/world/entity/monster/Creeper.java
@@ -272,6 +272,7 @@ public class Creeper extends Monster implements PowerableMob {
                 this.spawnLingeringCloud();
             } else {
                 this.swell = 0;
+                this.entityData.set(DATA_IS_IGNITED, Boolean.valueOf(false)); // Paper
             }
             // CraftBukkit end
         }