This issue is present when there are some readOnly fields in a PATCH request.
The readOnly fields should not be included in the PATCH request.
The documentation is correct, but the examples on the right show the readOnly fields.
Expected: those fields should not be included in the examples.
Here's a code example to reproduce this issue:
https://github.com/pushpad/pushpad-openapi/blob/master/specification/resources/subscriptions/subscriptions_update.yml