add @JsonIgnore to Element.parent

[connyduck]

Motivation

This makes it possible to serialize ContentItems with Jackson again (it breaks the circular reference chain). It helps with our custom caching solution.

Checklist

• Code follows coding conventions held in this repo
• Automated tests have been added
• Tests are passing
• Docs have been updated (if applicable)
• Temporary settings (e.g. variables used during development and testing) have been reverted to defaults

How to test

If manual testing is required, what are the steps?

[Simply007]

hello @connyduck ,

I will take a look at it hopefully this week (mainly the consequences of the decorator). Could you describe what is your core issue?

Ideally, if you can add a test for this functionality - something like there is a JSON response from Kontent and I need to deserialize it to the model X and serialize it back.

[connyduck]

I added a test that crashes with Infinite recursion (StackOverflowError) without the annotation.

[Simply007]

Looks cool, it seems there are no unexpected consequences of adding the decorator for parent property.

Thanks for the test!

Note for feature reference: Lombok equals implementation is taking care of property equality check for the new test.

[Simply007]

@connyduck - thanks for the pull request - it should be released in v4.3.1.