Fix normal walkthrough after opposing-party address

[drkwjr]

Issue

The Separation Agreement interview still has a normal-flow walkthrough blocker after the opposing-party address screen.

In local Docker testing, docassemble.ADivorceAgreement:divorceagreement.yml now reaches the new trial court division screen and accepts trial_court.division, but after submitting other_parties[0].address.*, docassemble returns:

Problem getting current question:'nota'

What we know

• This was reproducible on origin/main before the Portable/schema adapter branch, so it was not introduced by the adapter work.
• The adapter PR fixed a separate missing court-field problem by adding trial_court: MACourt and a trial_court.division question.
• With already-known tail fields preloaded after opposing-party address (users[0].address, signature_date, docket_number, preview continue), the interview reaches download a_divorce_agreement and generates a_divorce_agreement.pdf.

Acceptance criteria

• A normal API/UI walkthrough can proceed past opposing-party address without tail-field preloading.
• The interview reaches the download screen for the no-children baseline scenario.
• Generated PDF still includes the expected party names, docket number, and address values.

Related

• Portable/schema adapter PR: Add Portable schema adapter #2