undefined method :new_record? when loading new form for Monograph

[elrayle]

See Issue #5462 which has the same underlying failure.

Descriptive summary

When attempting to create a new Monograph work, which is a Valkyrie::Resource, exception undefined method :new_record? occurs as the new form loads.

Rationale

Creating a new record is core functionality and should be error free for Valkyrie works.

Expected behavior

Dashboard -> Works -> Add new work -> select type: Monograph -> Create work, should load the new work form.

Actual behavior

Dashboard -> Works -> Add new work -> select type: Monograph -> Create work, raises an exception:

NOTE: The problem is that Valkyrie works do not respond to :new_record?. They do respond to :persisted? which will be false when it is a new work.

Steps to reproduce the behavior

Prerequisite:

1. Navigate to: Dashboard -> Settings -> Features
2. make sure Batch upload is ON

To reproduce:

1. Navigate to: Dashboard -> Works
2. click button: Add new work
3. select type: Monograph
4. click button: Create work

Raises the exception seen under Actual behavior section