Make RT::User::OwnGroups() optionally recursive

When $SelfServiceShowGroupTickets is set to 1, the My Group Tickets
portlet in self-service would recursively search for all of a user's
group memberships. In some cases, this could degrade search performance
by trying to return tickets belonging to other groups. By making
OwnGroups() optionally recursive, both issues are avoided.

lib/RT/User.pm

@@ -1570,11 +1570,15 @@ user is a member.
 
 sub OwnGroups {
     my $self = shift;
+    my %args = (
+        Recursively => 1,
+        @_    # get the real argumentlist
+    );
     my $groups = RT::Groups->new($self->CurrentUser);
     $groups->LimitToUserDefinedGroups;
     $groups->WithMember(
         PrincipalId => $self->Id,
-        Recursively => 1
+        Recursively => $args{'Recursively'},
     );
     return $groups;
 }

share/html/SelfService/Elements/MyGroupRequests

@@ -75,7 +75,7 @@ unless ( $ret ){
     RT::Logger->error("Unable to load user record for user: " . $session{'CurrentUser'}->Name . " :$msg");
     return;
 }
-my $groups_obj = $user->OwnGroups;
+my $groups_obj = $user->OwnGroups( Recursively => 0 );
 
 my $Query = '';