fix(Core/Spells): Spells and auras activated by item use should not be removed on unequip. (#6255)

- Closes #5124
- Closes chromiecraft/chromiecraft#327

src/server/game/Entities/Player/Player.cpp

@@ -8618,8 +8618,21 @@ void Player::ApplyItemEquipSpell(Item* item, bool apply, bool form_change)
             continue;
 
         // wrong triggering type
-        if ((apply || form_change) && spellData.SpellTrigger != ITEM_SPELLTRIGGER_ON_EQUIP)
+        if (apply)
-            continue;
+        {
+            if (spellData.SpellTrigger != ITEM_SPELLTRIGGER_ON_EQUIP)
+            {
+                continue;
+            }
+        }
+        else
+        {
+            // Auras activated by use should not be removed on unequip
+            if (spellData.SpellTrigger == ITEM_SPELLTRIGGER_ON_USE)
+            {
+                continue;
+            }
+        }
 
         // check if it is valid spell
         SpellInfo const* spellproto = sSpellMgr->GetSpellInfo(spellData.SpellId);