--- subgraph.hpp.orig	2014-06-27 13:49:35.000000000 +0400
+++ subgraph.hpp.opbracket.patched.reconst	2014-10-28 20:24:30.000000000 +0300
@@ -277,11 +277,19 @@
     operator[](Descriptor x)
     { return is_root() ? m_graph[x] : root().m_graph[local_to_global(x)]; }
 
+    typename graph::detail::bundled_result<Graph, graph_bundle_t>::type&
+    operator[](graph_bundle_t x)
+    { return m_graph[x]; }
+
     template <typename Descriptor>
     typename graph::detail::bundled_result<Graph, Descriptor>::type const&
     operator[](Descriptor x) const
     { return is_root() ? m_graph[x] : root().m_graph[local_to_global(x)]; }
 
+    typename graph::detail::bundled_result<Graph, graph_bundle_t>::type const&
+    operator[](graph_bundle_t x) const
+    { return m_graph[x]; }
+
     // Local property access returns the local property of the given descripor.
     template <typename Descriptor>
     typename graph::detail::bundled_result<Graph, Descriptor>::type&