try to fix an issue where active abilities can be kept after resetting skilltree

gradle.properties

@@ -48,7 +48,7 @@ mod_name=Fretux's Skill Engine
 # The license of the mod. Review your options at https://choosealicense.com/. All Rights Reserved is the default.
 mod_license=All Rights Reserved
 # The mod version. See https://semver.org/
-mod_version=1.3.0
+mod_version=1.3.1
 # The group ID for the mod. It is only important when publishing as an artifact to a Maven repository.
 # This should match the base package used for the mod sources.
 # See https://maven.apache.org/guides/mini/guide-naming-conventions.html
@@ -56,4 +56,4 @@ mod_group_id=net.fretux.skillengine
 # The authors of the mod. This is a simple text string that is used for display purposes in the mod list.
 mod_authors=Fretux
 # The description of the mod. This is a simple multiline text string that is used for display purposes in the mod list.
-mod_description=A framework for the Ascend Skilltree
+mod_description=A framework for the Ascend Skilltree

src/main/java/net/fretux/skillengine/capability/PlayerSkillData.java

@@ -109,6 +109,13 @@ public class PlayerSkillData {
         return abilitySlots.clone();
     }
 
+    public void clearAbilitySlots() {
+        for (int i = 0; i < abilitySlots.length; i++) {
+            abilitySlots[i] = null;
+            abilityCooldowns[i] = 0;
+        }
+    }
+
     public void setCooldown(int slot, int ticks) {
         int idx = slot - 1;
         if (idx < 0 || idx >= abilityCooldowns.length) return;
@@ -215,9 +222,10 @@ public class PlayerSkillData {
         unlockedNodes.clear();
         activeTags.clear();
         unlockedAbilities.clear();
+        clearAbilitySlots();
     }
 
     public void sync(ServerPlayer player) {
         PacketHandler.syncSkillsTo(player);
     }
-}
+}