fix #27

module/application_form/templates/application_form/form.twig

@@ -16,7 +16,7 @@
 {% macro itemCount(name, label, value, index) %}
     <div class="form-group">
         <div class="col-xs-12 col-sm-12 col-md-9">
-            <input placeholder="{{ label|striptags }}" class="form-control input-sm"
+            <input placeholder="{{ label|striptags }}" class="form-control input-sm" min="1"
                 type="number" name="items[{{ index | default('<%= index %>') | raw }}][{{ name }}]" value="{{ value|default('')|raw }}">
         </div>
     </div>