fix wrong default protocol for customer homepage (#4514)

src/Form/CustomerEditForm.php

@@ -103,6 +103,7 @@ class CustomerEditForm extends AbstractType
                 'label' => 'homepage',
                 'required' => false,
                 'block_prefix' => 'homepage',
+                'default_protocol' => 'https',
             ])
             ->add('timezone', TimezoneType::class, [
                 'label' => 'timezone',

templates/form/blocks.html.twig

@@ -394,9 +394,9 @@
 {# customer homepage, search for "homepage" block_prefix #}
 {% block homepage_widget -%}
     <div class="input-group input-group-flat">
-        <span class="input-group-text">
-            https://
-        </span>
+        {% if '://' not in value  %}
+            <span class="input-group-text">https://</span>
+        {% endif %}
         {{ block('url_widget') }}
     </div>
 {%- endblock homepage_widget %}