change user default to use function so it's not run at application load, additionally use safe accessor on the id as the default language may not exist
change user default to use function so it's not run at application load, additionally use safe accessor on the id as the default language may not exist

DigitalCurationCentre/roadmap,CDLUC3/dmptool,DigitalCurationCentre/roadmap,DigitalCurationCentre/roadmap,DMPRoadmap/roadmap,CDLUC3/dmptool,DMPRoadmap/roadmap,CDLUC3/dmptool,DMPRoadmap/roadmap,CDLUC3/dmptool