Recursive definition no longer works in 5.4

[Assumeru]

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?

material-ui

Version

5.4.0

Current Behavior

A definition containing an array of which each array item is defined to be another instance of this definition leads to infinite recursion. Aside from the browser slowing down, a message gets logged in the console: could not merge subschemas in allOf: InternalError: too much recursion.

Expected Behavior

This same schema works fine in version 4.2, i.e. it doesn't recurse endlessly.

Steps To Reproduce

Paste this schema into https://rjsf-team.github.io/react-jsonschema-form/

Playground Link

{
  "definitions": {
    "@enum": {
      "type": "object",
      "properties": {
        "name": {
          "title": "Name",
          "type": "string",
          "minLength": 1
        },
        "_id": {
          "title": "Value",
          "type": "number"
        },
        "children": {
          "title": "Subvalues",
          "type": "array",
          "items": {
            "allOf": [
              {
                "$ref": "#/definitions/@enum"
              }
            ]
          }
        }
      }
    }
  },
  "type": "object",
  "properties": {
    "value": {
      "type": "array",
      "items": {
        "allOf": [
          {
            "$ref": "#/definitions/@enum"
          }
        ]
      },
      "minItems": 1
    }
  }
}

Environment

No response

Anything else?

I see a few other, older issues on the tracker that look similar, but these all appear to be from before version 5. #1160 appears to be about a nearly identical schema causing a similar issue along a different code path.

[heath-freenome]

@Assumeru Wow, yeah, we might have broken infinite recursion checking in the 5.x release. I will see how easy it is to fix it in the next week or so

[estk]

The playground hangs for me with:

{
  "title": "A registration form",
  "description": "A simple form example.",
  "type": "object",
  "properties": {
    "child": {
      "$ref": "#"
    }
  }
}

[heath-freenome]

@estk can you please write a new issue for this very extreme edge case so we can fix it?