Circular reference error in openapi spec

[scamden]

Describe the bug

Circular reference error

To Reproduce Steps to reproduce the behavior:

const spec = {
  openapi: '3.0.0',
  paths: {
    '/test': {
      post: {
        requestBody: {
          required: true,
          content: {
            'application/json': {
              schema: {
                $ref: '#/components/schemas/RequestBody',
              },
            },
          },
        },
        responses: {
          '200': {
            description: 'ok',
            content: {
              'application/json': {
                schema: {
                  type: 'object',
                  properties: {
                    ok: { type: 'boolean' },
                  },
                },
              },
            },
          },
        },
      },
    },
  },
  components: {
    schemas: {
      RequestBody: {
        type: 'object',
        properties: {
          filters: {
            type: 'array',
            items: {
              anyOf: [
                { $ref: '#/components/schemas/FilterGroup' },
                { $ref: '#/components/schemas/SoloFilter' },
              ],
            },
          },
        },
      },
      FilterGroup: {
        type: 'object',
        required: ['operator', 'filters'],
        properties: {
          operator: {
            type: 'string',
            enum: ['AND', 'OR'],
          },
          filters: {
            type: 'array',
            items: {
              anyOf: [
                { $ref: '#/components/schemas/FilterGroup' },
                { $ref: '#/components/schemas/SoloFilter' },
              ],
            },
          },
        },
      },
      SoloFilter: {
        type: 'object',
        required: ['field'],
        properties: {
          field: {
            type: 'string',
          },
        },
      },
    },
  },
} as const;
type TOAS = NormalizeOAS<typeof spec>;
const client = createClient<TOAS>({ endpoint: 'http://example.com' });
const simpleFilters = [{ field: 'targetIp', comparator: 'eq', value: '1.2.3.4' }];
const body = {
  filters: simpleFilters,
};

// this errors.. notably it doesn't if i pass the body directly as a literal and not from a variable
void client['/test'].post(body);

Expected behavior

no error

Environment:

• OS:
  Mac
• NodeJS:
  24

Additional context

I'm on the latest feTS

[scamden]

@ardatan get a chance to check this out at all?