FontDialog is not showing up in qmlscatter example

[issue]

FontDialog doesn't show up

[background]

I was working on the implementation of the demo application for the upcoming customer meeting.

Since the customer was interested in data visualization, I decided to modify the example app "qmlscatter" availble on Qt Creator to be tailored to the customer needs.

During the course of implementation, I inserted the code to show FontDialog, but somehow it didn't show up, even when open() method was called.

Here is the simple modification I made to the code(main.qml) :

The modified "qmlscatter" project is also attached to this issue.