title: IntelliJ keep asking for "Setup Scala SDK" after every synch with the repository
body: <p>As the title says, IntelliJ keep asking to set the Scala SDK of my sbt projects (they are inside a multi-project) at every merge with the repository. It's like some settings file is being overwritten for a specific project but I can't seem to find what's the problem. Any insight on where to look?</p>