Hide the 'publish copies' checkbox if there is nothing to publish

wagtail/wagtailadmin/templates/wagtailadmin/pages/copy.html

@@ -21,7 +21,7 @@
                     </li>
                 {% endif %}
 
-                {% if can_publish %}
+                {% if pages_to_publish.count and can_publish %}
                     {% include "wagtailadmin/shared/field_as_li.html" with field=form.publish_copies %}
                     <li class="help">
                         {% blocktrans with live_page_count=pages_to_copy.live.count %}{{ live_page_count }} of the pages being copied are live. Would you like to publish their copies?{% endblocktrans %}

wagtail/wagtailadmin/views/pages.py

@@ -726,10 +726,13 @@ def copy(request, page_id):
         # Redirect to explore of parent page
         return redirect('wagtailadmin_explore', parent_page.id)
 
+    pages_to_copy = page.get_descendants(inclusive=True)
+
     return render(request, 'wagtailadmin/pages/copy.html', {
         'page': page,
-        'pages_to_copy': page.get_descendants(inclusive=True),
+        'pages_to_copy': pages_to_copy,
         'parent_page': parent_page,
+        'pages_to_publish': pages_to_copy.live(),
         'can_publish': can_publish,
         'form': form,
     })