[BUG] [GO] Unused imports "fmt" and "bytes" when generateMarshalJSON=false and generateUnmarshalJSON=false

[raphoester]

Description

The bug happens when running the Go generation with both generateUnmarshalJSON and generateMarshalJSON flags set to false.

Some of the resulting model files contain unused imports to bytes and fmt.
Unused imports are disallowed by the Go language, which results in the client being unable to compile

openapi-generator version

Version : openapi-generator-cli 7.12.0-SNAPSHOT
Commit : 9a9c108
Built: -999999999-01-01T00:00:00+18:00

OpenAPI declaration file content or url

https://api.reepay.com/openapi.json

Generation Details

docker run --rm -v ${PWD}:/local openapitools/openapi-generator-cli generate \
		-i <ref> \
		-g go \
		-o /local/out \
		--additional-properties=generateMarshalJSON=false,generateUnmarshalJSON=false

Steps to reproduce

command above on any valid input

Related issues/PRs

Suggest a fix

I guess checking for unused imports after the generation, and then deleting them should do it

[raphoester]

I have found a temporary fix : run goimports -w . to fix the broken imports.
But ideally the broken imports should not be in the generated files in the first place