spring-boot-starter-thymeleaf:3.1.32, Webflux, template name inference from uri path

[eastoid]

hello, im having issues with thymeleaf automatically selecting template name for a sub path. '/a' correctly serves a template with a name i defined, but '/a/b' tries to return a template called a/b - despite a Rendeing view being defined.

Dependencies:

	runtimeOnly("org.postgresql:r2dbc-postgresql")
	implementation("org.springframework.boot:spring-boot-starter-data-r2dbc")

	implementation("com.google.code.gson:gson:+")
	implementation("org.springframework.boot:spring-boot-starter-security")
	implementation("org.springframework.boot:spring-boot-starter-thymeleaf")
	implementation("org.springframework.boot:spring-boot-starter-webflux")
	implementation("com.fasterxml.jackson.module:jackson-module-kotlin")
	implementation("io.projectreactor.kotlin:reactor-kotlin-extensions")
	implementation("org.jetbrains.kotlin:kotlin-reflect")
	implementation("org.jetbrains.kotlinx:kotlinx-coroutines-reactor")
	implementation("commons-net:commons-net:+")

Example Controller:

@Controller
class ExampleController {

    @GetMapping("/a/b")
    fun exampleMapping(): Rendering? {
        return Rendering.view("templateName").build()
    }
}