Default build directory setting is ignored

In both QtCreator 4 and 5 I used 

%{Env:CURRENT_CMAKE_BUILD_DIR}/%{Project:Name}

as default build directory in Build & Run -> Default Build Properties.

When opening a CMakelists.txt, it would then automatically check for a build to be imported in the configure project view.

Now it doesn't do that. The Import Build From... section is collapsed. When I expand it, the directory is set to the Projects Directory value.

I changed the Default Build Directory to

%{Env:CURRENT_CMAKE_BUILD_DIR}/%{ActiveProject:Name}

As I think Project:Name is not supported anymore in QtCreator6. Still it doesn't work.

When following the same steps to open a project as described above, I replace the Projects Directory value with the new value using ActiveProject:Name
and browse, it opens nautilus in the correct folder. So the resolving of the variables works fine.

Please restore the old behaviour.