For instance, if I have the policy set to say that the final newline should always be applied, and I open a file that doesn't have this and select save, the file remains unchanged.
It seems that JetBrains has integrated this plugin into the IDE itself. Maybe you should report to their bug tracker to make them aware of the problem?
For instance, if I have the policy set to say that the final newline should always be applied, and I open a file that doesn't have this and select save, the file remains unchanged.