Environment variable-supplied facts should be resolved prior to confines

When testing another issue I discovered that facts supplied as environment variables are evaluated after confines, and therefore can't be used to override/supply a value for a confine based on a fact.

Given a fact in envfact/myfact.rb:

Facter.add(:myfact) do

  confine matchfact: 'matches'

  setcode do

    "fact results"

  end

end

where "matchfact" otherwise does not exist, I would expect this to work:

$ FACTER_matchfact=matches facter --custom-dir=envfact -d myfact

but instead it returns nothing.

A look at the debug logs clearly shows the environment variable-based facts not resolving until after the custom fact.

Thank you.