Don't use `address.norm_long` unless it exists

[BryceStevenWilley]

Causes an error if unable to find an address for the housing court.

This interview will error without this patch, if you enter a fake street address and city:

---
include:
  - docassemble.AssemblyLine:assembly_line.yml
  - docassemble.MassAccess:massaccess.yml
---
mandatory: True
code: |
  users
  users[0].address.address
  trial_court