[BUG] [PHP] oneOf problem with the similar field names in different models

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

Model have the similar fields (is_catchall and is_catch_all), after generation of api

openapi-generator version

5.0.1-SNAPSHOT

OpenAPI declaration file content or url

https://github.com/go-email-validator/email-validator-sdk/blob/e99fe82d3c9d6d520687cf499688112e86acfe03/ev.openapiv3.yaml#L227

oneOf:
        - $ref: '#/components/schemas/CheckIfEmailExistResult'
        - $ref: '#/components/schemas/MailboxvalidatorResult'
        - $ref: '#/components/schemas/PromptEmailVerificationApiResult'
...
is_catchall:
        type: string
...
is_catch_all:
        type: boolean

Steps to reproduce

docker run  --rm -v ${PWD}/php:/local/out -v $(OPENAPI_PATH):/local/openapi.yaml  openapitools/openapi-generator-cli:latest generate \
	-i /local/openapi.yaml \
	-g php \
	-o /local/out/

[wing328]

We recently merged a fix related to ensureUniqueParams. Please give it another try with the latest master.

[wing328]

Looks like it’s true by default:

https://github.com/OpenAPITools/openapi-generator/blob/1006d2f21e41cf2f78f3e984fd8dd1127c392cbd/modules/openapi-generator/src/main/java/org/openapitools/codegen/DefaultCodegen.java#L207