I've also submitted this to upstream and it's in 5.6 (https://codereview.qt-project.org/#/c/153756/), and it is both in my 5.5 and 5.6 branches but just not published to Ubuntu archives.
I've also submitted this to upstream and it's in 5.6 (https:/ /codereview. qt-project. org/#/c/ 153756/), and it is both in my 5.5 and 5.6 branches but just not published to Ubuntu archives.