не работает код для подарочного сертификата

apps/user/templates/user/profile-settings.html

@@ -122,7 +122,7 @@
               <div class="field__label">ДАТА РОЖДЕНИЯ</div>
               <div class="field__wrap">
                 <vue-datepicker input-class="field__input" name="child_birthday" language="ru" format="dd/MM/yyyy"
-                value="{% if user.child_birthday %}{{ user.child_birthday | date:'d/m/Y' }}{% endif %}" placeholder="dd/mm/yyyy"/>
+                value="{% if user.child_birthday %}{{ user.child_birthday | date:'Y-m-d' }}{% endif %}" placeholder="dd/mm/yyyy"/>
               </div>
               {% for error in form.child_birthday.errors %}
               <div class="field__error">{{ error }}</div>
@@ -188,7 +188,7 @@
               <div class="field__label">ДАТА РОЖДЕНИЯ</div>
               <div class="field__wrap">
                 <vue-datepicker input-class="field__input" name="birthday" language="ru" format="dd/MM/yyyy"
-                value="{% if user.birthday %}{{ user.birthday | date:'d/m/Y' }}{% endif %}" placeholder="dd/mm/yyyy"/>
+                value="{% if user.birthday %}{{ user.birthday | date:'Y-m-d' }}{% endif %}" placeholder="dd/mm/yyyy"/>
               </div>
               {% for error in form.birthday.errors %}
               <div class="field__error">{{ error }}</div>