Inconsistent representation of nullable field from openapi yaml

[vesai]

OpenAPI YAML file content:

nullableString:
  type: string
  nullable: true
nullableNumber:
  type: number
  nullable: true
nullableBoolean:
  type: boolean
  nullable: true
nullableObject:
  type: object
  nullable: true
nullableObjectWithProps:
  type: object
  nullable: true
  properties:
    prop1:
      type: string
nullableArrayOfNullableObject:
  type: array
  nullable: true
  items:
    type: object
    nullable: true
nullableArrayOfNullableObjectWithProps:
  type: array
  nullable: true
  items:
    type: object
    nullable: true
    properties:
      prop1:
        type: string

How it renders:

What is wrong:
nullableObject and nullableObjectWithProps should have type: object | null, not just object

More details

openapi: 3.0.1

mintlify version
cli version 4.2.634
client version 0.0.3108