code: function _reloadUserPrefs(rootDir) {
          var prefsDir = brackets.app.getApplicationSupportDirectory() + "/";
          if (prefsDir.indexOf(rootDir.fullPath) === 0) {
              manager.fileChanged(userPrefFile);
              stateManager.fileChanged(userStateFile);
          }
      }
docs: Listen for times where we might be unwatching a root that contains one of the user-level prefs files, and force a re-read of the file in order to ensure we can write to it later (see #7300).