[Boost-users] [shared_ptr] Multiple enable_shared_from_this in inheritance tree

There was a Code Project article (http://www.codeproject.com/Articles/286304/Solution-for-multiple-enable_shar...) about a problem using multiple enable_shared_from_this derivations in an inheritance tree. Does this problem actually exist in the current Boost implementation ? If so, should there not be some documentation regarding it ?