diff -Nru ubuntu-defaults-builder-0.29/bin/dh_ubuntu_defaults ubuntu-defaults-builder-0.30/bin/dh_ubuntu_defaults
--- ubuntu-defaults-builder-0.29/bin/dh_ubuntu_defaults	2012-04-02 14:26:15.000000000 +0000
+++ ubuntu-defaults-builder-0.30/bin/dh_ubuntu_defaults	2012-04-03 07:22:05.000000000 +0000
@@ -113,6 +113,7 @@
     my $package = shift;
     my $file = shift;
 
+    return if $dh{DISABLE_RESTRICTIONS};
     return unless $package =~ /^ubuntu-/;
 
     # check if our template (NOT the package's file) has a "NotUbuntu:" tag;
@@ -585,7 +586,9 @@
     }
 }
 
-init();
+init(options => {
+    "disable-restrictions" => \$dh{DISABLE_RESTRICTIONS},
+});
 
 init_macros();
 
diff -Nru ubuntu-defaults-builder-0.29/debian/changelog ubuntu-defaults-builder-0.30/debian/changelog
--- ubuntu-defaults-builder-0.29/debian/changelog	2012-04-02 14:29:53.000000000 +0000
+++ ubuntu-defaults-builder-0.30/debian/changelog	2012-04-03 07:28:22.000000000 +0000
@@ -1,3 +1,10 @@
+ubuntu-defaults-builder (0.30) precise; urgency=low
+
+  * bin/dh_ubuntu_defaults: Add (undocumented) --disable-restrictions option.
+    (LP: #971994)
+
+ -- Martin Pitt <martin.pitt@ubuntu.com>  Tue, 03 Apr 2012 09:28:22 +0200
+
 ubuntu-defaults-builder (0.29) precise; urgency=low
 
   * bin/dh_ubuntu_defaults: Fix unintentional closure binding of $tmp in
diff -Nru ubuntu-defaults-builder-0.29/test/run ubuntu-defaults-builder-0.30/test/run
--- ubuntu-defaults-builder-0.29/test/run	2012-04-02 14:12:14.000000000 +0000
+++ ubuntu-defaults-builder-0.30/test/run	2012-04-03 07:26:13.000000000 +0000
@@ -386,6 +386,25 @@
             'desktop', 'background.jpg'))
         self.build(expect_fail=True)
 
+    def test_ubuntu_restrictions_disable(self):
+        '''Disable ubuntu-* restrictions'''
+
+        self.rename_package('ubuntu-defaults-test')
+        self.enable_example('desktop/default-session.txt')
+
+        rules_path = os.path.join(self.pkgdir, 'debian', 'rules')
+        with open(rules_path) as f:
+            rules = f.read()
+        rules = rules.replace('dh_ubuntu_defaults', 'dh_ubuntu_defaults --disable-restrictions')
+        with open(rules_path, 'w') as f:
+            f.write(rules)
+
+        self.build(expect_fail=False)
+
+        with open(os.path.join(self.debdir,
+            'usr/share/ubuntu-defaults-test/default-session.txt')) as f:
+            self.assertEqual(f.read(), 'ubuntu-2d')
+
     def test_image_syntax(self):
         '''syntax check of ubuntu-defaults-image'''