Fix CanHeal() for already healing targets

src/hacks/AutoHeal.cpp

@@ -472,6 +472,10 @@ void UpdateData()
 
 bool CanHeal(int idx)
 {
+    // Already healing, no need to check
+    if (idx == HandleToIDX(CE_INT(LOCAL_W, netvar.m_hHealingTarget)))
+        return true;
+    
     CachedEntity *ent = ENTITY(idx);
     if (!ent)
         return false;