hitTestAll method doesn't return Group path

[KmXK]

Description/Steps to reproduce

hitTestAll method for Project object does not return Group object but his children when color of one of the object differs.

Example:

// paperscript
settings.insertItems = false
const rect1 = new Path.Rectangle([0], [100, 100])
rect1.fillColor = 'red'
rect1.strokeColor = 'black'

const rect2 = new Path.Rectangle([25, 25], [50, 50])
rect2.fillColor = 'red'
rect2.strokeColor = 'black'

const group = new Group(rect1, rect2)

project.activeLayer.addChild(group)

console.log(project.hitTestAll([30, 30]))

Here hitTestAll method will return array with 3 elements: 2 Rectangle paths and one Group.

Next example:

settings.insertItems = false
const rect1 = new Path.Rectangle([0], [100, 100])
rect1.fillColor = 'red'
rect1.strokeColor = 'black'

const rect2= new Path.Rectangle([25, 25], [50, 50])
rect2.fillColor = 'white'
rect2.strokeColor = 'black'

const group = new Group(rect1, rect2)

project.activeLayer.addChild(group)

console.log(project.hitTestAll([30, 30]))

This code will return only group's children and will skip Group object.

Maybe this link to Sketch will be useful.

Expected result

hitTestAll returns both Group and it's elements.