It is a good suggestion. Yeah, I tried a simple sample in codepen and the issue has not happened. Maybe there are something wrong in my project. Thanks!

Hi all,
My Quasar version is v1.0.0 and I am using QDate with QInput like this:

<q-input outlined v-model="datePickupOrg">
      <template v-slot:append>
        <q-icon name="event" class="cursor-pointer">
          <q-popup-proxy ref="qDateProxy" transition-show="scale" transition-hide="scale">
            <q-date v-model="datePickupOrg" mask="DD-MM-YYYY"
                    @input="() => $refs.qDateProxy.hide()"/>
          </q-popup-proxy>
        </q-icon>
      </template>
</q-input>

I have 2 functions, one is Add New Date and one is Update Date. With Add New Date, I choose a date from popup and the date is showed in QInput. With Update date, the date is loaded correctly. However, when I choose a new date, the date is not updated in QInput until I do an action like Submit button.
I am not sure if I am using wrong code anywhere. Anyone can help me to fix it? Thanks!