hotfix : validate patient hos_num 'unique' only when new patient added/updated manually
hotfix : validate patient hos_num 'unique' only when new patient added/updated manually

FiviumAustralia/OpenEyes,FiviumAustralia/OpenEyes,FiviumAustralia/OpenEyes,FiviumAustralia/OpenEyes,FiviumAustralia/OpenEyes