[BUG] [Generator] release v7.11.0 breaks referenced shema's properties

Bug Report Checklist

• Have you provided a full/minimal spec to reproduce the issue?
• Have you validated the input using an OpenAPI validator (example)?
• Have you tested with the latest master to confirm the issue still exists?
• Have you searched for related issues/PRs?
• What's the actual output vs expected output?
• [Optional] Sponsorship to speed up the bug fix or feature request (example)

Description

When a schema's field is defined by using a $ref schema; referenced schema properties (e.g. description) are not added

openapi-generator version

• Working with .7.10.0 ✅
• Break with 7.11.0 🔴

OpenAPI declaration file content or url

openapi: 3.0.3
info:
  title: API Overview 
  version: "v1"
  description: description


paths:
  "/path":
    post:    
      operationId: post
      requestBody:
        $ref: '#/components/requestBodies/requestBody'      
      responses:
        "200":
          description: no response
          
components:
  requestBodies:
    requestBody:
      content: 
        application/json:
          schema:
            $ref: '#/components/schemas/requestSchema'
  schemas:
    requestSchema:    
      type: object
      properties:
        directField:
          type: string
          description: value field description from 'requestSchema' schema
        deferencedField:
          $ref: '#/components/schemas/deferencedSchema'

    deferencedSchema:
      type: object
      allOf:
        - $ref: '#/components/schemas/lowLevelSchema'
      description: Description from 'deferencedSchema' schema

    lowLevelSchema:
      type: string
      description: Description from 'lowLevelSchema' schema

Generation Details

• v7.10.0 generation
  Note the description content is correctly extracted from deferencedSchema within java comments :
  * Description from 'deferencedSchema' schema

  /**
   * Description from 'deferencedSchema' schema
   * @return deferencedField
   */
  @javax.annotation.Nullable
  @JsonProperty(JSON_PROPERTY_DEFERENCED_FIELD)
  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
  public String getDeferencedField() {
    return deferencedField;
  }

• v7.11.0 generation
  Note the description content no longer contains the description (defaulted to field name):
  * Get deferencedField

  /**
   * Get deferencedField
   * @return deferencedField
   */
  @javax.annotation.Nullable
  @JsonProperty(JSON_PROPERTY_DEFERENCED_FIELD)
  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
  public Object getDeferencedField() {
    return deferencedField;
  }

Steps to reproduce

java -jar openapi-generator-cli-7.11.0.jar generate -i /fooAllOfDescriptionAndRef.yaml -g java -o output --additional-properties=library=apache-httpclient

Related issues/PRs

• Issue appeared with this revert commit: https://github.com/OpenAPITools/openapi-generator/commit/066a840dd8d626e10c449f551a8cb3b99b7e0f23

Suggest a fix

Reproduce the issue with the supplied OpenAPI YAML and the Java generator command, comparing output from v7.10.0 and v7.11.0. Inspect revert commit 066a840dd8d626e10c449f551a8cb3b99b7e0f23 and trace how referenced schema descriptions are handled; done means the generated getter again includes the dereferenced schema description and retains the expected type.