SfComponentSelect dosen't hold selection

         <SfComponentSelect
            :selected="option.values[0].code"
            :size="5"
            class="mr-1"
            :persistent="false" >
              <SfComponentSelectOption
              v-for="value in option.values"
              :key="value.id"
              :value="value.code"
            >
            
            {{ value.value }}
            
            </SfComponentSelectOption>
          </SfComponentSelect>