* object.c (rb_obj_clone): Protect FL_PROMOTED and FL_WB_PROTECTED

  flags of a destination object.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43976 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 1 deletions

diff --git a/object.c b/object.c
index 70f6d66e5e..f316a1bcbe 100644
--- a/object.c
+++ b/object.c
@@ -335,7 +335,7 @@ rb_obj_clone(VALUE obj)
         rb_raise(rb_eTypeError, "can't clone %s", rb_obj_classname(obj));
     }
     clone = rb_obj_alloc(rb_obj_class(obj));
-    RBASIC(clone)->flags &= FL_TAINT;
+    RBASIC(clone)->flags &= (FL_TAINT|FL_PROMOTED|FL_WB_PROTECTED);
     RBASIC(clone)->flags |= RBASIC(obj)->flags & ~(FL_PROMOTED|FL_FREEZE|FL_FINALIZE);
 
     singleton = rb_singleton_class_clone_and_attach(obj, clone);