Merge fix from r3049 of 7.1 branch related to dashboard error pointed out

by bug report "Macros failing due to Utility::isIn() bug".

docs/changelog/7.x.x.txt

@@ -4,8 +4,8 @@
 
 7.1.2
  - Fixed a bug that caused workflows to fail if collaboration systems and
-   posts for that CS were in the same version tag at commit time.
-
+    posts for that CS were in the same version tag at commit time.
+  - fix: minor assetsToHide implementation bug in dashboard
 
 7.1.1
  - fix: some issues with asset exports not handling URLs with dots correctly

lib/WebGUI/Asset/Wobject/Dashboard.pm

@@ -164,7 +164,7 @@ sub prepareView {
 	my $children = $self->getLineage( ["children"], { returnObjects=>1, excludeClasses=>["WebGUI::Asset::Wobject::Layout","WebGUI::Asset::Wobject::Dashboard"] });
 	my @hidden = split("\n",$self->get("assetsToHide"));
 	foreach my $child (@{$children}) {
-		unless (isIn($child,@hidden) || !($child->canView)) {
+		unless (isIn($child->getId, @hidden) || !($child->canView)) {
 			$self->session->style->setRawHeadTags($child->getExtraHeadTags);
 			$child->prepareView;
 		}