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path: root/nms-patches/BlockPoweredRail.patch
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--- a/net/minecraft/server/BlockPoweredRail.java
+++ b/net/minecraft/server/BlockPoweredRail.java
@@ -1,5 +1,7 @@
 package net.minecraft.server;
 
+import org.bukkit.craftbukkit.event.CraftEventFactory; // CraftBukkit
+
 public class BlockPoweredRail extends BlockMinecartTrackAbstract {
 
     public static final BlockStateEnum<BlockPropertyTrackPosition> SHAPE = BlockProperties.S;
@@ -106,6 +108,13 @@
         boolean flag1 = world.isBlockIndirectlyPowered(blockposition) || this.a(world, blockposition, iblockdata, true, 0) || this.a(world, blockposition, iblockdata, false, 0);
 
         if (flag1 != flag) {
+            // CraftBukkit start
+            int power = flag ? 15 : 0;
+            int newPower = CraftEventFactory.callRedstoneChange(world, blockposition, power, 15 - power).getNewCurrent();
+            if (newPower == power) {
+                return;
+            }
+            // CraftBukkit end
             world.setTypeAndData(blockposition, (IBlockData) iblockdata.set(BlockPoweredRail.POWERED, Boolean.valueOf(flag1)), 3);
             world.applyPhysics(blockposition.down(), this);
             if (((BlockPropertyTrackPosition) iblockdata.get(BlockPoweredRail.SHAPE)).c()) {