Pass duplicate the skipAutoCommitWorkflows switch. Fixes bug #11581.

docs/changelog/7.x.x.txt

@@ -3,6 +3,7 @@
  - fixed #11576: Default WebGUI config has a bad macro
  - fixed #11578: Collaboration System: add edit stamp uses wrong user
  - added #9774: More owner information in the gallery
+ - fixed #11581: Calendar problems
 
 7.9.5
  - Asset->www_copy now has a progress bar

lib/WebGUI/AssetClipboard.pm

@@ -486,7 +486,7 @@ sub www_duplicateList {
 	foreach my $assetId ($session->form->param("assetId")) {
 		my $asset = WebGUI::Asset->newByDynamicClass($session,$assetId);
 		if ($asset->canEdit) {
-			my $newAsset = $asset->duplicate;
+			my $newAsset = $asset->duplicate({skipAutoCommitWorkflows => 1, });
 			$newAsset->update({ title=>$newAsset->getTitle.' (copy)'});
 		}
 	}