Asciidoctor source with attributes subs bug demo

demo.adoc

Demo

This works, but is not ideal

build.gradle.kts

buildscript {
    dependencies {
        classpath("org.junit.platform:junit-platform-gradle-plugin:1.2.3")
    }
}

configure<JUnitPlatformExtension> {
    filters {
        engines {
            include("spek")
        }
    }
}

This also works, but disallows use of attributes

build.gradle.kts

buildscript {
    dependencies {
        classpath("org.junit.platform:junit-platform-gradle-plugin:1.2.3")
    }
}

configure<JUnitPlatformExtension> {
    filters {
        engines {
            include("spek")
        }
    }
}

This is what one would like to do, but doesn’t work

build.gradle.kts

buildscript {
    dependencies {
        classpath("org.junit.platform:junit-platform-gradle-plugin:1.2.3")
    }
}

configure {
    filters {
        engines {
            include("spek")
        }
    }
}