Australia; New Client form; Organisation page; ABN not being saved for new Client

When adding a new client with a client type (e.g. Trust) that has an ABN, the ABN was not being saved.
After adding the Trust Client the ABN was not cleared out when you added the next client.

FIle, Import / Export Information
When exporting an existing client with an ABN the ABN was not exported.
When importing a client with an ABN the ABN was not imported.