Old CMake log still shown after opening new project

1. Create a new CMake-based project.
   I used a Qt Widgets Application.
2. Wait until Creator finished configuring the project.
3. Close the project.
4. Create a new qmake-based project.
   Again, I used a Qt Widgets Application.
5. Go to Projects mode.
6. Check the output view on the right side of the window. You might have to click the button in Creator's lower right corner to see it.
   It shows CMake's configuration log from the previous project. There's no indicator that it is outdated.

The config log should at least be greyed out, the latest when opening a different project.