Core/SAI: restore deleted line in 28050f338d

Field left uninitialized. Caused weird evade behaviour

src/server/game/AI/SmartScripts/SmartAI.cpp

@@ -45,6 +45,7 @@ SmartAI::SmartAI(Creature* c) : CreatureAI(c)
     // Spawn in run mode
     mRun = true;
     m_Ended = false;
+    mEvadeDisabled = false;
 
     mCanAutoAttack = true;
     mCanCombatMove = true;