Wrong form payload when adding properties in the schema

[thereis]

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

6.0.0-beta.15

Current Behavior

When adding new items to a schema that has patternProperties, the submitted form payload has incorrect chaining.

Also, it's not possible to delete the newly added properties:

Expected Behavior

When submitting the form, we should have the correct payload; also, we should be able to add and remove newly added properties.

Steps To Reproduce

1. Visit the following URL in the playground to debug it or try the following schema:

{
  "type": "object",
  "properties": {
    "template": {
      "title": "Template",
      "description": "The template to replace placeholders in.",
      "examples": [
        "Hello, {{name}}! You are {{age}} years old."
      ],
      "type": "string"
    },
    "variables": {
      "title": "Variables",
      "description": "The variables to replace placeholders in.",
      "default": {
        "variables": ""
      },
      "examples": [
        {
          "name": "John",
          "age": 30
        },
        {
          "name": "Jane",
          "age": 25
        }
      ],
      "type": "object",
      "patternProperties": {
        "^(.*)$": {
          "anyOf": [
            {
              "$id": "string",
              "title": "String",
              "default": "",
              "description": "The string value to replace placeholders in.",
              "examples": [
                "John",
                "Jane"
              ],
              "type": "string"
            },
            {
              "$id": "number",
              "title": "Number",
              "default": 0,
              "description": "The number value to replace placeholders in.",
              "examples": [
                30,
                25
              ],
              "type": "number"
            }
          ]
        }
      }
    }
  },
  "required": [
    "template",
    "variables"
  ]
}

https://rjsf-team.github.io/react-jsonschema-form/#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

20250910-1716-42.0085493.mp4

Environment

- OS: Windows 11
- Node: 22.17.1
- npm: -

Anything else?

Maybe it's an issue from my schema.

[heath-freenome]

@thereis Yes, this is a duplicate of #4763, closing this one