fix: set osd assignments when rebalancing

xtreemfs_client/OSDManager.py

@@ -235,6 +235,9 @@ class OSDManager(object):
 
             print("rebalanced osd manager: \n" + str(self))
 
+        new_assignments = list(map(lambda key, value : (key, value[1]), list(movements.items())))
+        self.apply_osd_assignments(new_assignments)
+
         start_time = time.time()
 
         if fix_layout_internally: