fixed bug with combobox error messaging DMPRoadmap/roadmap#408
fixed bug with combobox error messaging DMPRoadmap/roadmap#408

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