Properties ending with "?" aren't made optional anymore

[postatum]

Getting canonical form type with property ending with "?" doesn't make it required: false anymore. Iif I recall correctly it used to work before recent updates.

Cat:
  type: object
  properties:
    name?:
      type: string

{
  "properties": {
    "name?": {
      "type": "string",
      "required": true
    }
  },
  "additionalProperties": true,
  "type": "object",
  "required": true
}