diff --git a/src/lol/algorithm/aabb_tree.h b/src/lol/algorithm/aabb_tree.h
index a288dc5e..2da8c1a2 100644
--- a/src/lol/algorithm/aabb_tree.h
+++ b/src/lol/algorithm/aabb_tree.h
@@ -168,7 +168,20 @@ public:
         m_max_element = 1;
         AddLeaf(0);
     }
-    ~AABBTree() { }
+    ~AABBTree()
+    {
+        Clear();
+    }
+    void CopySetup(const AABBTree<TE, TV, TB, child_nb>* src)
+    {
+        CopySetup(*src);
+    }
+    void CopySetup(const AABBTree<TE, TV, TB, child_nb>& src)
+    {
+        m_size = src.m_size;
+        m_max_depth = src.m_max_depth;
+        m_max_element = src.m_max_element;
+    }
 
 private:
     //--
@@ -333,6 +346,9 @@ public:
     }
 
     //--
+    TV                  GetSize()                       { return m_size; }
+    int                 GetMaxDepth()                   { return m_max_depth; }
+    int                 GetMaxElement()                 { return m_max_element; }
     void                SetSize(TV size)                { m_size = size; }
     void                SetMaxDepth(int max_depth)      { m_max_depth = max_depth; }
     void                SetMaxElement(int max_element)  { m_max_element = max_element; }
diff --git a/src/lol/sys/thread.h b/src/lol/sys/thread.h
index 7ce86169..2bfe20fe 100644
--- a/src/lol/sys/thread.h
+++ b/src/lol/sys/thread.h
@@ -72,6 +72,7 @@ struct ThreadJobType
         WORK_TODO,
         WORK_DONE,
         WORK_FAILED,
+        WORK_FETCHED,
         THREAD_STOP,
 
         MAX
diff --git a/src/sys/thread.cpp b/src/sys/thread.cpp
index dab6512d..43c403f1 100644
--- a/src/sys/thread.cpp
+++ b/src/sys/thread.cpp
@@ -116,7 +116,10 @@ void BaseThreadManager::TickGame(float seconds)
         {
             ThreadJob* job = result[i];
             if (job->GetJobType() == ThreadJobType::WORK_DONE)
+            {
+                job->SetJobType(ThreadJobType::WORK_FETCHED);
                 TreatResult(job);
+            }
         }
     }
 }