Is Registering Factory Override on Abstract Base Class valid?

In reply to dave_59:

Dave , for better understanding I was going through the Base Class Library for the control flow during create() ::


[1] create()  internally  calls  factory.create_component_by_type() 
   [ As  create()  uses Type - Based  factory  ]  . 

[2] Function  create_component_by_type()  calls   find_override_by_type()  which  would  return 
 
    an  overridden  type  if factory  Override  is  registered ( as in our case ) . 

[3] Finally virtual  function  create_component() (  of  the  Proxy  class  Specialized  to the  overridden  type ) gets  called  which  calls  new() .

So shouldn’t constructor of env#( 4) get called ?