FIX: issue #650 (Refinement may start with digit, its use is problematic)
FIX: issue #650 (Refinement may start with digit, its use is problematic)

red-eco/red,iArnold/red,NikolayShubenkovProgSchool/red,iArnold/red,rheber/red,vehar/red,red-eco/red,rheber/red,vehar/red,NikolayShubenkovProgSchool/red