Alias Set Object Name using only digits

fainemr

According to the documentation:

object_name string(32) SName of the alias set. The name must be uniqueamong all alias set objects in the repository andcannot contain a period (.) or be composed entirely of numerical digits.

Creating an alias set with an object name composed entirely of numerical digits seems to work fine for me.  Is this no longer an issue and just a documentation bug or am I reading it wrong?  Please confirm if you can.  I'm using 6.7 SP1 P09