Core/Spells: added missing part of 0d1d468

Author: Ovahlord

src/server/game/Entities/Unit/Unit.cpp

@@ -9938,6 +9938,9 @@ void Unit::TriggerAurasProcOnEvent(ProcEventInfo& eventInfo, AuraApplicationProc
 {
     Spell const* triggeringSpell = eventInfo.GetProcSpell();
     bool const disableProcs = triggeringSpell && triggeringSpell->IsProcDisabled();
+
+    int32 oldProcChainLength = std::exchange(m_procChainLength, std::max(m_procChainLength + 1, triggeringSpell ? triggeringSpell->GetProcChainLength() : 0));
+
     if (disableProcs)
         SetCantProc(true);
 
@@ -9951,6 +9954,8 @@ void Unit::TriggerAurasProcOnEvent(ProcEventInfo& eventInfo, AuraApplicationProc
 
     if (disableProcs)
         SetCantProc(false);
+
+    m_procChainLength = oldProcChainLength;
 }
 
 ///----------Pet responses methods-----------------