Spec validation error: Errors: -info.contact.kiryuxa.com

[bas-kirill]

Describe the bug
Hi! I have multiple OpenAPI specs with same info section. I want to bundle them in one file using redocly join. For it I am using script:

#!/bin/bash
set -e
currentDir=$(cd -P -- "$(dirname -- "$0")" && pwd -P)
rootDir="$currentDir/../../../"

(cd "$rootDir/openapi" && exec rm -rf ./openapi.yml)
(cd "$rootDir/openapi" && exec redocly join \
  ./specs/common/ClientError.yml \
  ./specs/common/ServerError.yml \
  -o ./openapi.yml)
(cd "$rootDir/client" && rm -rf ./src/generated)
(cd "$rootDir/client" &&
  mkdir -p ./src/generated &&
  touch ./src/generated/index.ts &&
  touch ./src/generated/base.ts &&
  touch ./src/generated/common.ts &&
  touch ./src/generated/api.ts &&
  touch ./src/generated/configuration.ts &&
  touch ./src/generated/git_push.sh &&
  touch ./src/generated/.gitignore &&
  touch ./src/generated/.npmignore &&
  touch ./src/generated/.openapi-generator-ignore
)
(cd "$rootDir" && exec docker run \
    --rm \
    -v "${PWD}/openapi:/local/openapi" \
    -v "${PWD}/client/src/generated:/local/client/src/generated" \
    openapitools/openapi-generator-cli:v7.8.0 generate \
    --input-spec /local/openapi/openapi.yml \
    --output /local/client/src/generated \
    --generator-name typescript-axios \
    --additional-properties=apiPackage=api,modelPackage=model,supportsES6=true,withSeparateModelsAndApi=true
)
(cd "$rootDir/server" && ./gradlew clean)
(cd "$rootDir/server" && exec ./gradlew openApiGenerate)

Added to Screenshots folder structure.

openapi/specs/common/ServerError.yml:

openapi: "3.1.0"

info:
  description: Server Error
  version: 1.0.0
  title: Server Error
  contact:
    name: Kirill B
    url: kiryuxa.com
    email: baskirill.an@gmail.com

paths: {}

components:
  schemas:
    ServerError:
      type: object
      required: [message]
      properties:
        message:
          type: string
          description: A description of the error.
      example:
        message: "Internal Server Error. Please try again later."

openapi/specs/common/ClientError.yml:

openapi: "3.1.0"

info:
  description: Client Error
  version: 1.0.0
  title: Client Error
  contact:
    name: Kirill B
    url: kiryuxa.com
    email: baskirill.an@gmail.com

paths: {}

components:
  schemas:
    ClientError:
      type: object
      required: [message]
      properties:
        message:
          type: string
          description: Error description
      example:
        message: "Client Error"

As I mentioned I am using command to bundle OpenAPI files to one file:

(cd "$rootDir/openapi" && exec redocly join \
  ./specs/common/ClientError.yml \
  ./specs/common/ServerError.yml \
  -o ./openapi.yml)

But after executing command I gets an error:

    ╔═══════════════════════════════════════════════════════╗
    ║                                                       ║
    ║  A new version of Redocly CLI (1.20.1) is available.  ║
    ║  Update now: `npm i -g @redocly/cli@latest`.          ║
    ║  Changelog: https://redocly.com/docs/cli/changelog/   ║
    ║                                                       ║
    ╚═══════════════════════════════════════════════════════╝


./openapi.yml: join processed in 11ms

Exception in thread "main" org.openapitools.codegen.SpecValidationException: There were issues with the specification. The option can be disabled via validateSpec (Maven/Gradle) or --skip-validate-spec (CLI).
 | Error count: 1, Warning count: 2
Errors: 
        -info.contact.kiryuxa.com
Warnings: 
        -info.contact.kiryuxa.com

        at org.openapitools.codegen.config.CodegenConfigurator.toContext(CodegenConfigurator.java:717)
        at org.openapitools.codegen.config.CodegenConfigurator.toClientOptInput(CodegenConfigurator.java:744)
        at org.openapitools.codegen.cmd.Generate.execute(Generate.java:527)
        at org.openapitools.codegen.cmd.OpenApiGeneratorCommand.run(OpenApiGeneratorCommand.java:32)
        at org.openapitools.codegen.OpenAPIGenerator.main(OpenAPIGenerator.java:66)

Expected behavior
Bundle file, that contains section:

info:
  description: Client Error (or Server Error, doesn't matter)
  version: 1.0.0
  title: Client Error
  contact:
    name: Kirill B
    url: kiryuxa.com
    email: baskirill.an@gmail.com

Minimal reproducible OpenAPI snippet(if possible)

1. Create openapi/specs/common/ClientError.yml
2. Create openapi/specs/common/ServerError.yml
3. Run from openapi folder:

redocly join \
  ./specs/common/ClientError.yml \
  ./specs/common/ServerError.yml \
  -o ./openapi.ym

Screenshots
Folder structure:

Additional context
Add any other context about the problem here.