/// Initial state
// this
[object Main]

// stage
[object Stage]

// this.actualStage
[object Stage]


/// Removed root
// this
[object Main]

// stage
null

// this.actualStage
[object Stage]


/// Timer called
// this
[object Main]

// stage
null

// this.actualStage
[object Stage]


/// Attached root
// this
[object Main]

// stage
[object Stage]

// this.actualStage
[object Stage]


