Swagger interface refuses to 'try' text value 1.0 as examplevalue in TextPlain

Describe the bug

@Path( "" )
public interface RestResource {

    @POST
    @Path( "/reproduce" )
    @Consumes( MediaType.TEXT_PLAIN  )
    @Produces( MediaType.TEXT_PLAIN )
    @Operation(
        operationId = "test",
        summary = "this is a tester",
        description = "a long story for something short: test"
    )
    @RequestBody(
        content = @Content(
            mediaType = MediaType.TEXT_PLAIN,
            examples = {
                @ExampleObject(
                    name = "version",
                    description = "1.0",
                    value = "1.0"
                )
            }
        )
    )
    @APIResponse(
        responseCode = "200",
        content = @Content( mediaType = MediaType.TEXT_PLAIN),
        description = "The result."
    )
    Response test(String xml);
}

Gives result

Expected behavior

an example value 1.0

Actual behavior

1. Apparently some string manipulation takes place in the translation to javascript.

How to Reproduce?

See reproducer: https://github.com/sjaakd/reproducer_quarkus_swagger_1_0

Try:
http://localhost:8080/reproducer/q/swagger-ui/#/Rest%20Resource/test

Output of uname -a or ver

No response

Output of java -version

11

GraalVM version (if different from Java)

No response

Quarkus version or git rev

2.4.2.Final

Build tool (ie. output of mvnw --version or gradlew --version)

maven

Additional information

No response

Reproduce the issue through the Swagger UI entry point at /reproducer/q/swagger-ui/#/Rest%20Resource/test using the linked Quarkus reproducer. Trace how the TEXT_PLAIN example value moves into the Try flow, then verify that the displayed and submitted example remains 1.0 rather than 1.