fix(Core/Creature): Re-Add IGNORE_ASSISTANCE_CALL flag (#16387)

init

src/server/game/Entities/Creature/Creature.cpp

@@ -2445,6 +2445,12 @@ bool Creature::CanAssistTo(Unit const* u, Unit const* enemy, bool checkfaction /
     if (GetCharmerOrOwnerGUID())
         return false;
 
+    /// @todo: Implement aggro range, detection range and assistance range templates
+    if (m_creatureInfo->HasFlagsExtra(CREATURE_FLAG_EXTRA_IGNORE_ALL_ASSISTANCE_CALLS))
+    {
+        return false;
+    }
+
     // only from same creature faction
     if (checkfaction)
     {