interfaceOnly and generateModelDocumentation configs are not working as expected

I'm using a openapi-generator-maven-plugin with jaxrs-cxf generator and the following configuration:

    <groupId>org.openapitools</groupId>
    <artifactId>openapi-generator-maven-plugin</artifactId>
    <version>3.3.4</version>
    <executions>
      <execution>
        <goals>
          <goal>generate</goal>
        </goals>
        <configuration>
          <inputSpec>${project.basedir}/src/main/resources/openapi.yaml</inputSpec>
          <generatorName>jaxrs-cxf</generatorName>
          <generateSupportingFiles>false</generateSupportingFiles>
          <generateApiTests>false</generateApiTests>
          <generateModelDocumentation>false</generateModelDocumentation>
          <generateApiDocumentation>false</generateApiDocumentation>
          <configOptions>
            <sourceFolder>src/gen/java/main</sourceFolder>
            <interfaceOnly>true</interfaceOnly>
          </configOptions>
        </configuration>
      </execution>
    </executions>
  </plugin>

I do expect from configuration not to generate implementation classes as well as not to have annotation documentation in my models and apis, however they're still in place.
I've found other people having the same issue.
Is it a bug which hasn't been fixed or should I do smth different?

Reproduce the Maven configuration using the referenced src/main/resources/openapi.yaml path, generatorName jaxrs-cxf, interfaceOnly, and documentation-generation settings. Inspect the generated API and model output to determine which options are ignored; done means implementation classes and annotation documentation are omitted as requested.