Fix #970 -- invoice info consistency (#1043)

resolves: Issue #970

src/pretix/base/forms/questions.py

@@ -216,6 +216,8 @@ class BaseInvoiceAddressForm(forms.ModelForm):
 
     def clean(self):
         data = self.cleaned_data
+        if not data.get('is_business'):
+            data['company'] = ''
         if not data.get('name') and not data.get('company') and self.event.settings.invoice_address_required:
             raise ValidationError(_('You need to provide either a company name or your name.'))
 

src/pretix/presale/templates/pretixpresale/event/checkout_confirm.html

@@ -87,8 +87,10 @@
                         </div>
                         <div class="panel-body">
                             <dl class="dl-horizontal">
-                                <dt>{% trans "Company" %}</dt>
-                                <dd>{{ addr.company }}</dd>
+                                {% if addr.company %}
+                                    <dt>{% trans "Company" %}</dt>
+                                    <dd>{{ addr.company }}</dd>
+                                {% endif %}
                                 <dt>{% trans "Name" %}</dt>
                                 <dd>{{ addr.name }}</dd>
                                 <dt>{% trans "Address" %}</dt>