kludgy fix: Cannot manageAssets for a Collaboration System with locked Threads

docs/changelog/7.x.x.txt

@@ -1,6 +1,8 @@
 7.3.2
  - fix: Calendar and Event now have printable templates and URL parameters.
  - fix: Miscellaneous Calendar template fixes
+ - fix: Cannot manageAssets with a locked Thread -- NOTE: Kludgy, but any other
+   way would probably have to break API.
 
 7.3.1
  - Fixed a problem with IE and resizable text areas that caused IE to crash

lib/WebGUI/Asset.pm

@@ -1173,7 +1173,8 @@ sub manageAssets {
 		$title =~ s/\'/\\\'/g;
 		my $locked;
 		my $edit;
-		if ($child->isLocked) {
+		#if ($child->isLocked) {
+		if ($child->lockedBy) {	# This is a stopgap to fix a bug when isLocked is overridden but does not function as in the API
 			my $username_html = WebGUI::HTML::format($child->lockedBy->username, "text");
 			$locked = '<img src="'.$self->session->url->extras('assetManager/locked.gif').'" alt="locked by '.$username_html.'" title="locked by '.$username_html.'" style="border: 0px;" />';
 			$edit = "'<a href=\"".$child->getUrl("func=edit;proceed=manageAssets")."\">Edit</a> | '+" if ($child->canEditIfLocked);