Comment 2 for bug 1542001

I believe this is the way QQuickTextInput is implemented.

What happens here is that when the cursor reaches beginning/end of the text content, it ignores the following left/right key event. That means the key event propagates to the parent. The scope receives that event and handles it, thus changing the selected item in the view.

I think there are many ways to handle this, one being that the SDK component may stop the event from propagating when the text field is focused.

PS: this is probably related. https://bugs.launchpad.net/ubuntu/+source/unity8/+bug/1541967