merges r28453 and r28454 from trunk into ruby_1_9_2.

--
* class.c (rb_mod_init_copy): when class is dup'ed, a metaclass of the
  class should be attached to the dup'ed class, not the original
  class.  [ruby-core:30843] [Bug #3461]
--
* bootstraptest/test_class.rb: add a test for [ruby-core:30843].

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_2@28503 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 0 deletions

diff --git a/class.c b/class.c
index ac51f8e02b..e6fb74816b 100644
--- a/class.c
+++ b/class.c
@@ -146,6 +146,7 @@ rb_mod_init_copy(VALUE clone, VALUE orig)
     rb_obj_init_copy(clone, orig);
     if (!FL_TEST(CLASS_OF(clone), FL_SINGLETON)) {
 	RBASIC(clone)->klass = rb_singleton_class_clone(orig);
+	rb_singleton_class_attached(RBASIC(clone)->klass, (VALUE)clone);
     }
     RCLASS_SUPER(clone) = RCLASS_SUPER(orig);
     if (RCLASS_IV_TBL(orig)) {