fixed a typo

Author: digi604

cms/admin/placeholderadmin.py

@@ -186,12 +186,22 @@ def add_plugin(self, request):
     @xframe_options_sameorigin
     @transaction.commit_on_success
     def copy_plugins(self, request):
+        """
+        POST request should have the following data:
+
+        - source_language
+        - source_placeholder_id
+        - source_plugin_id (optional)
+        - target_language
+        - target_placeholder_id
+        - target_plugin_id (optional, new parent)
+        """
         source_language = request.POST['source_language']
         source_placeholder_id = request.POST['source_placeholder_id']
         source_plugin_id = request.POST.get('source_plugin_id', None)
         target_language = request.POST['target_language']
         target_placeholder_id = request.POST['target_placeholder_id']
-        target_plugin_id = request.POST.get('target_placeholder_id', None)
+        target_plugin_id = request.POST.get('target_plugin_id', None)
         source_placeholder = get_object_or_404(Placeholder, pk=source_placeholder_id)
         target_placeholder = get_object_or_404(Placeholder, pk=target_placeholder_id)
         if not target_language or not target_language in get_language_list():

cms/utils/copy_plugins.py

@@ -23,7 +23,8 @@ def copy_plugins_to(plugin_list, to_placeholder, to_language=None, parent_plugin
             first = False
             if parent_plugin_id:
                 from cms.models import CMSPlugin
-                new_plugin.move_to(target=CMSPlugin.objects.get(pk=parent_plugin_id))
+                if parent_plugin_id:
+                    new_plugin.move_to(target=CMSPlugin.objects.get(pk=parent_plugin_id))
         plugins_ziplist.append((new_plugin, old_plugin))
         # this magic is needed for advanced plugins like Text Plugins that can have
     # nested plugins and need to update their content based on the new plugins.