Prerequisites

• I have searched the existing issues
• I understand that providing a SSCCE example is tremendously useful to the maintainers.
• I have read the documentation
• Ideally, I'm providing a sample JSFiddle, Codesandbox.io or preferably a shared playground link demonstrating the issue.

What theme are you using?

core

Version

5.x

Current Behavior

Making a standalone checkbox mandatory does NOT render an asterisk.
Refer to schema below in 'Steps to reproduce'

Form renders ok, errors shown up when clicking submit button, but no asterisk shows up.

Expected Behavior

Making a standalone checkbox mandatory should render an asterisk, so behavior is consistent across this package.

Steps To Reproduce

This is the schema I am using

const schema: RJSFSchema = {
    title: "User Information", //fieldset-Legend
    type: "object",
    required: ["firstName", "IAgreeCheckbox"], // These fields are mandatory;
    properties: {
      firstName: {
        title: "First Name",
        type: "string",
        minLength: 2,
        maxLength:20,
        pattern: "^[A-Za-z'-]*$"
      },
      age: {
        title: "Age",
        type: "number",
        minimum:18,
        maximum:100
      },
      //single-checkbox:
      IAgreeCheckbox: {
        type: "boolean",
        title: "I Agree with All the above",
        const: true //Must check
      }
    }
  };

/*
Field-level error message:
Must be equal to constant.

Form-level error message:
'I Agree with All the above' must be equal to constant
*/

Environment

- OS:Windows 11
- Node: v14.20.0 (not relevant)
- npm: 6.14.17 (not relevant)

Anything else?

It's a basic problem, the library should behave consistently.