Ignore mass assignment rules when cloning. [ fix #2360 ]

CHANGELOG.md

@@ -14,6 +14,8 @@ For instructions on upgrading to newer versions, visit
   needed. (When there is not more than one polymorphic parent defined on the
   same class).
 
+* \#2360 Cloning documents should ignore mass assignment protection rules.
+
 * \#2356 When limiting fields returned in queries via `only` ensure that the
   limitation is scoped to the model.
 

lib/mongoid/copyable.rb

@@ -22,7 +22,7 @@ def clone
       if attrs.delete("versions")
         attrs["version"] = 1
       end
-      self.class.new(attrs)
+      self.class.new(attrs, without_protection: true)
     end
     alias :dup :clone
   end

spec/mongoid/copyable_spec.rb

@@ -12,7 +12,9 @@
           version: 4,
           created_at: Time.now,
           updated_at: Time.now
-        )
+        ) do |p|
+          p.owner_id = 5
+        end
       end
 
       let!(:address) do
@@ -52,6 +54,10 @@
         it "flags the document as changed" do
           copy.should be_changed
         end
+
+        it "copies protected fields" do
+          copy.owner_id.should eq(5)
+        end
       end
 
       context "when the document is new" do