Spray-json None values are always converted to null. How to change this?

[myDisconnect]

Spray converts None values to null only when NullOptions trait is added but by default it doesn't add those fields to JSON.
When using kebs implicitly[RootJsonFormat[xxx]], it converts None values to null. Example of such case: https://scastie.scala-lang.org/myDisconnect/tgnMaqh4QcCdQWDBWQZT5A/7 see f4 field (this is also visible in Kebs tests)
Is it possible to change this behaviour in Kebs and ignore None values?

Note: This seems to be happening when a case class has more than 22 parameters

[luksow]

I think that providing your own optionJsonFormat would help... Have you analysed why is that happening? Sounds like a bug in spray.

[myDisconnect]

Hey @luksow, I updated the issue description and added a sample, I don't think it's related to Spray

[luksow]

Thanks for detailed report. I've found out why. It's a bug and we'll try to fix it.

[myDisconnect]

🥳 When will the new version will be released?

[pk044]

@myDisconnect We will try to get it released this week.

[pk044]

@myDisconnect FYI: the new release is already available on Maven Central