Postgres - copy table INCLUDING CONSTRAINT doesn't include constraint
The documentation says about INCLUDING CONSTRAINTS (emphasis mine): 


  Not-null constraints are always copied to the new table. CHECK constraints will only be copied if INCLUDING CONSTRAINTS is specified; other types of constraints will never be copied. Also, no distinction is made between column constraints and table constraints — when constraints are requested, all check constraints are copied.


Foreign keys obviously fall into this 'other constraints' group, this is why the two FKs of yours are not copied over.

Interestingly, the documentation for version 9.3 has a different wording, not stating the above so clearly.