Ember data: Revert belongsTo destroy

@leondmello wrote:

Suppose I have two models, parent and child which share a belongsTo relationship.

models/parent.js
{
    child: belongsTo('')
}
models/child.js
{
    parent: belongsTo('')
}

In one of my controllers, I want to destroy the two records, so I have code which does something like,

model.get('child').destroyRecord()
    .then(() => {
         model.destroyRecord();
    });

How do I revert the delete on the child if the parent's model.destroyRecord() fails?
What is the preferred approach to revert dependent relationship deletes?

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