`Enum.toString()` isn't used in links generated by `WebMvcLinkBuilder` since 1.4

I'm using WebMvcLinkBuilder to generate links to controller methods with specific predefined parameters represented by a list of enums. These enums have custom toString() implementations to provide required labels for given API calls. However, it's not used since 1.4 resulting in incorrect links.

Simplified example:

enum class Words(private val text: String) {
    HELLO("Hello,"),
    WORLD("world!");

    override fun toString(): String {
        return text
    }
}

val invocation = WebMvcLinkBuilder.methodOn(TestController::class.java)
        .get(listOf(Words.HELLO, Words.WORLD))
val actualLink = WebMvcLinkBuilder.linkTo(invocation).withSelfRel().href

Currently, since 1.4, they are represented using their name():
/?words=HELLO&words=WORLD

However, before 1.4, enums were converted using their toString() implementation, generated link was:
/?words=Hello,&words=world!

Sample project with unit test:
demo-hateoas.zip