MinifyJsTask doesn't work from an included file https://github.com/eriwen/gradle-js-plugin/issues/61

.gitignore

.gradle
build
main.min.js

build.gradle

buildscript {
    repositories {
        mavenCentral()
    }
    dependencies {
        classpath group: 'com.eriwen', name: 'gradle-js-plugin', version: gradleJsPluginVersion
    }
}

apply plugin: 'js'
apply from: 'minify.gradle'

defaultTasks 'build'

task clean(dependsOn: minifyJsClean)
task build(dependsOn: minifyJsExtermal)
task buildAlt(dependsOn: 'minifyJsLocal')

task minifyJsLocal(type: com.eriwen.gradle.js.tasks.MinifyJsTask) {
    source = file('main.js')
    dest   = file('main.min.js')
}

gradle.properties

gradleJsPluginVersion = 1.9.+

main.js

function subProj1() {
    console.log('Just a test.')
}

minify.gradle

buildscript {
    repositories {
        mavenCentral()
    }
    dependencies {
        classpath group: 'com.eriwen', name: 'gradle-js-plugin', version: gradleJsPluginVersion
    }
}

apply plugin: 'js'

task minifyJsExtermal(type: com.eriwen.gradle.js.tasks.MinifyJsTask) {
    source = file('main.js')
    dest   = file('main.min.js')
}

task minifyJsClean(type: Delete) {
    delete 'main.min.js'
}