Index: /branches/release-30/lib/MT/Builder.pm
===================================================================
--- /branches/release-30/lib/MT/Builder.pm (revision 1424)
+++ /branches/release-30/lib/MT/Builder.pm (revision 1426)
@@ -293,5 +293,6 @@
         $cond = {};
     }
-    $ctx->stash('builder', $build);
+    # Avoids circular reference between MT::Template::Context and MT::Builder.
+    local $ctx->{__stash}{builder} = $build;
     my $res = '';
     my $ph = $ctx->post_process_handler;