BlockPistonRetractEvent not firing (only BlockPistonExtendEvent) for sticky pistons

### Expected behavior When a sticky piston extends and retracts in-game, both BlockPistonExtendEvent and BlockPistonRetractEvent should fire respectively. ### Observed/Actual behavior When a sticky piston extends and retracts in-game, only BlockPistonExtendEvent fires; BlockPistonRetractEvent never fires. ### Steps/models to reproduce minimal demo plugin: ``` import org.bukkit.event.EventHandler; import org.bukkit.event.Listener; import org.bukkit.event.block.BlockPistonExtendEvent; import org.bukkit.event.block.BlockPistonRetractEvent; import org.bukkit.plugin.java.JavaPlugin; public final class PistonPlugin extends JavaPlugin implements Listener { @Override public void onEnable() { getServer().getPluginManager().registerEvents(this, this); } @EventHandler public void onPistonExtendEvent(final BlockPistonExtendEvent e) { System.out.println("a piston extend event occurred!"); } @EventHandler public void onPistonRetractEvent(final BlockPistonRetractEvent e) { System.out.println("a piston retract event occurred!"); } } ``` in-game: 1. Place down a sticky piston. 2. Place a lever next to the sticky piston. 3. Yank That Lever! ### Plugin and Datapack List ``` > /plugins [19:51:51 INFO]: ℹ Server Plugins (1): [19:51:51 INFO]: Bukkit Plugins: [19:51:51 INFO]: - PistonPlugin > /datapack list [19:51:53 INFO]: Unknown or incomplete command. See below for error datapack list<--[HERE] ``` ### Folia version ``` [19:51:11 INFO]: This server is running Folia version 1.21.11-13-ver/1.21.11@e9e85fd (2026-02-15T20:15:31Z) (Implementing API version 1.21.11-R0.1-SNAPSHOT) You are running the latest version Previous version: 1.21.11-4-7b7a7ef (MC: 1.21.11) ``` ### Other Regular pistons fire both events as expected, this is an issue specific to sticky pistons.