Fixed double listener registration bug

eco-core/core-plugin/src/main/kotlin/com/willfp/ecoenchants/enchants/EcoEnchant.kt

@@ -65,6 +65,11 @@ abstract class EcoEnchant(
 
     private val conflictNames = config.getStrings("conflicts")
 
+    private val _listeners = mutableListOf<Listener>()
+
+    val listeners: List<Listener>
+        get() = this._listeners
+
     val conflictsWithEverything: Boolean
         get() = conflictNames.containsIgnoreCase("all")
                 || conflictNames.containsIgnoreCase("everything")
@@ -194,6 +199,7 @@ abstract class EcoEnchant(
 
     fun registerListener(listener: Listener) {
         this.plugin.eventManager.registerListener(listener)
+        this._listeners += listener
     }
 
     @Deprecated(

eco-core/core-plugin/src/main/kotlin/com/willfp/ecoenchants/enchants/EcoEnchants.kt

@@ -17,6 +17,7 @@ import com.willfp.ecoenchants.type.EnchantmentTypes
 import org.bukkit.ChatColor
 import org.bukkit.NamespacedKey
 import org.bukkit.enchantments.Enchantment
+import org.bukkit.event.Listener
 
 @Suppress("UNUSED")
 object EcoEnchants {
@@ -96,6 +97,10 @@ object EcoEnchants {
 
         for (enchant in values()) {
             removeEnchant(enchant)
+
+            for (listener in enchant.listeners) {
+                plugin.eventManager.unregisterListener(listener)
+            }
         }
 
         for ((id, config) in plugin.fetchConfigs("enchants")) {

gradle.properties

@@ -1,4 +1,4 @@
 #libreforge-updater
 #Tue Jan 17 16:49:41 GMT 2023
-version=9.15.8
+version=9.15.9
 plugin-name=EcoEnchants