SORMAS-Foundation#2929 fix Error when entering the case data form in read-only mode

Author: vidi42

sormas-ui/src/main/java/de/symeda/sormas/ui/caze/CaseDataForm.java

@@ -488,10 +488,11 @@ protected void addFields() {
 				}
 				updateFacilityDetails(facility, facilityDetails);
 			} else {
-
-				FacilityReferenceDto noFacilityRef = FacadeProvider.getFacilityFacade().getByUuid(FacilityDto.NONE_FACILITY_UUID).toReference();
-				facility.addItem(noFacilityRef);
-				facility.setValue(noFacilityRef);
+				if (facility.getValue() == null && !facility.isReadOnly()) {
+					FacilityReferenceDto noFacilityRef = FacadeProvider.getFacilityFacade().getByUuid(FacilityDto.NONE_FACILITY_UUID).toReference();
+					facility.addItem(noFacilityRef);
+					facility.setValue(noFacilityRef);
+				}
 			}
 		});
 		facilityTypeGroup.addValueChangeListener(e -> {