[OE-3987] fixed crash when saving examination event with comorbidities child element
[OE-3987] fixed crash when saving examination event with comorbidities child element

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