ScrollContainer.Refresh() doesn't seem to work properly

[wenhsinhsieh]

Describe the bug:

ScrollContainer.Refresh() doesn't seem to work properly

Example code:

Changing the content of a ScrollContainer and refresh doesn't really update the screen, for example:

something := drawSomething()
container := widget.NewScrollContainer(something)

updateButton := widget.NewButton("Update", func() {
	container.Content = drawSomethingElse()
	container.Refresh()
})

However, if I wrap the content in another container, it works as expected, for example:

something := drawSomething()
innerContainer := fyne.NewContainerWithLayout(layout.NewVBoxLayout(), something)
container := widget.NewScrollContainer(innerContainer)

updateButton := widget.NewButton("Update", func() {
	innerContainer.Objects = []fyne.CanvasObject{drawSomethingElse()}
	innerContainer.Refresh()
})

So I doubt that something wrong with the ScrollContainer.Refresh()

Device (please complete the following information):

• OS: Windos
• Version: 10
• Go version: 1.14.6
• Fyne version: 1.3.3

[andydotxyz]

This is fixed on develop for testing, will be in 1.4 release

[wenhsinhsieh]

Wow you fix it so fast! Thank you very much!