Swagger is generated with example: null on 1.32

I had an issue updating kogito from 1.31 to 1.32. The automatically generated Swagger had "example": null for every field in the json, leading to the ui showing just "null" in the example box, instead of inferring the example based on type (which I guess it used to do before).

Here you can see a portion of the diff between the swagger generated by cogito 1.31 and 1.32:

I'm about to create a repo to reproduce the error