Guranteed crash caused by findAllRefs and isObjectSchema for this autogenerated schema

[JichenZhang]

Describe the bug

For the following schema, any input to the stickerPresets part of data would cause the form to crash.

{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "type": "object",
  "properties": {
    "stickerPresets": {
      "type": "array",
      "items": {
        "$ref": "#/definitions/StickerPreset"
      }
    },
    "posterConfig": {
      "$ref": "#/definitions/PosterConfig"
    }
  },
  "required": ["stickerPresets", "posterConfig"],
  "additionalProperties": false,
  "definitions": {
    "StickerPreset": {
      "type": "object",
      "properties": {
        "groups": {
          "type": "array",
          "items": {
            "$ref": "#/definitions/StickerGroup"
          }
        },
        "onFace": {
          "$ref": "#/definitions/Gltf"
        }
      },
      "required": ["groups"],
      "additionalProperties": false
    },
    "StickerGroup": {
      "type": "object",
      "properties": {
        "stickers": {
          "type": "array",
          "items": {
            "$ref": "#/definitions/Sticker"
          }
        },
        "movable": {
          "type": "boolean"
        }
      },
      "required": ["stickers", "movable"],
      "additionalProperties": false
    },
    "Sticker": {
      "type": "object",
      "properties": {
        "widthRelativeToViewportWidth": {
          "type": "number"
        },
        "position": {
          "anyOf": [
            {
              "$ref": "#/definitions/BottomLeft"
            },
            {
              "$ref": "#/definitions/TopLeft"
            },
            {
              "$ref": "#/definitions/CenterCoordinate"
            }
          ]
        },
        "source": {
          "anyOf": [
            {
              "$ref": "#/definitions/Still"
            },
            {
              "$ref": "#/definitions/Animated"
            }
          ]
        }
      },
      "required": ["widthRelativeToViewportWidth", "position", "source"],
      "additionalProperties": false
    },
    "BottomLeft": {
      "type": "object",
      "properties": {
        "type": {
          "type": "string",
          "const": "bottomLeft"
        }
      },
      "required": ["type"],
      "additionalProperties": false
    },
    "TopLeft": {
      "type": "object",
      "properties": {
        "type": {
          "type": "string",
          "const": "topLeft"
        }
      },
      "required": ["type"],
      "additionalProperties": false
    },
    "CenterCoordinate": {
      "type": "object",
      "properties": {
        "type": {
          "type": "string",
          "const": "centerCoordinate"
        },
        "xRelativeToViewportWidth": {
          "type": "number"
        },
        "yRelativeToViewportHeight": {
          "type": "number"
        }
      },
      "required": ["type", "xRelativeToViewportWidth", "yRelativeToViewportHeight"],
      "additionalProperties": false
    },
    "Still": {
      "type": "object",
      "properties": {
        "type": {
          "type": "string",
          "const": "still"
        },
        "source": {
          "type": "string"
        }
      },
      "required": ["type", "source"],
      "additionalProperties": false
    },
    "Animated": {
      "type": "object",
      "properties": {
        "type": {
          "type": "string",
          "const": "animated"
        },
        "source": {
          "type": "string"
        },
        "sprite": {
          "$ref": "#/definitions/Sprite"
        }
      },
      "required": ["type", "source", "sprite"],
      "additionalProperties": false
    },
    "Sprite": {
      "type": "object",
      "properties": {
        "frameRate": {
          "type": "number"
        },
        "numRows": {
          "type": "number"
        },
        "numCols": {
          "type": "number"
        },
        "frameCount": {
          "type": "number"
        }
      },
      "required": ["frameRate", "numRows", "numCols"],
      "additionalProperties": false
    },
    "Gltf": {
      "type": "object",
      "properties": {
        "source": {
          "type": "string"
        },
        "sprite": {
          "$ref": "#/definitions/SpriteMaterial"
        }
      },
      "required": ["source"],
      "additionalProperties": false
    },
    "SpriteMaterial": {
      "type": "object",
      "properties": {
        "meshName": {
          "type": "string"
        },
        "sprite": {
          "$ref": "#/definitions/Sprite"
        }
      },
      "required": ["meshName", "sprite"],
      "additionalProperties": false
    },
    "PosterConfig": {
      "type": "object",
      "properties": {
        "headerSource": {
          "type": "string"
        },
        "footerSource": {
          "type": "string"
        }
      },
      "required": ["footerSource"],
      "additionalProperties": false
    }
  }
}

The following is the error message

OOPS! Something went wrong!
Cannot read properties of undefined (reading 'properties')
TypeError: Cannot read properties of undefined (reading 'properties')
    at https://mirismaili.github.io/jsonforms-playground/dist/static/js/main.1d46151f.js:2:982015
    at t.findAllRefs (https://mirismaili.github.io/jsonforms-playground/dist/static/js/main.1d46151f.js:2:982026)
    at s (https://mirismaili.github.io/jsonforms-playground/dist/static/js/main.1d46151f.js:2:982514)
    at t.resolveSchema (https://mirismaili.github.io/jsonforms-playground/dist/static/js/main.1d46151f.js:2:983167)
    at https://mirismaili.github.io/jsonforms-playground/dist/static/js/main.1d46151f.js:2:961714
    at https://mirismaili.github.io/jsonforms-playground/dist/static/js/main.1d46151f.js:2:962772
    at Array.reduce (<anonymous>)
    at https://mirismaili.github.io/jsonforms-playground/dist/static/js/main.1d46151f.js:2:962740
    at https://mirismaili.github.io/jsonforms-playground/dist/static/js/main.1d46151f.js:2:962772
    at Array.reduce (<anonymous>)

Expected behavior

Not crashing

Steps to reproduce the issue

1. Goto playground
2. paste in the schema
3. set ui schema to { "type": "Control", "scope": "#" }
4. set data to {}
5. Click the add button to populate the "stickerPresets" array

Screenshots

In which browser are you experiencing the issue?

Google Chrome 105.0.5195.127

Framework

React

RendererSet

Material

Additional context

The schema is auto-generated from a ts type using ts-json-schema-generator. It seems that the error occurs at the ref parsing code whenever data changes. I also tried setting validationMode to "NoValidation", but the error still persists.