From online installer: Qt Creator does not show the examples from the selected compiler at startup

When using online installers only (both enterprise and open source).

Launch Qt Creator. Steps to reproduce the problem.

• In the Examples section
• Note the compiler selected in the combo box
• Open the combo box and check that the initial item currently selected is not the first one in the list (for example if you have android and gcc on linux, gcc is generally selected). Make sure you don't change the selected item.
• Open an example.
• Check the path of the example: it does match the compiler currently selected but the path the item number 0 or currentIndex -1 in the Examples compiler combo box
• Go back to the Examples page and try to reopen the same example so it will complain the example is already opened and will give the full path to the pro file opened.

Tested on Mac and Linux (haven't tried Windows yet)