Steps to reproduce:

• create a couple of projects {qbs, cmake, qmake}-based
• try to use Build > Run Generator > Compilation Database for "XYZ"

This seems to use the last created/active project instead of the current one.

This may even use a project of a former session.

Having a couple of projects inside a session and loading this session after starting QC seems to only use one of the projects (I had one cmake based which was not the active one, but used) for this the Compilation Database generation (no matter whether switching the active project), but after creating another new project the behaviour above (using the last active project) seems to occur again.