QML Application Window Menu behaving weird when resizing

[maxwell31]

Hi,

I have a question. I noticed, that the QML ApplicationWindow is sometimes behaving weird, when one is resizing the window. This can be reproduced on my system (Ubuntu 16.04) in the following way:

• In Qt-Creator open the fylesystembrowser example (under Welcome, Examples) and run it
• Grab the lower right border and move it up or down, and you will see that the Menu (the "File") text is sometimes moving a bit up or down, and sometimes the buttons beneath get rendered in the wrong place for a very short time (maybe a single frame)

What is the reason for this behaviour. Can it be avoided?

[maxwell31]

Here a video from this behaviour, and I made two screenshots of adjacent frames. This was done using the uiforms example.

Here the window as it should be:

And sometimes when resizing, the menu gets shifted down. Is this a known bug?

Here the video:
[0_1520521015054_qt_test.ogv](Uploading 100%)