Fix schema. Add safe_model_attributes for pipelines

db/schema.rb

@@ -11,7 +11,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20170830125940) do
+ActiveRecord::Schema.define(version: 20170824162758) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"

spec/lib/gitlab/import_export/safe_model_attributes.yml

@@ -224,6 +224,7 @@ Ci::Pipeline:
 - lock_version
 - auto_canceled_by_id
 - pipeline_schedule_id
+- protected
 Ci::Stage:
 - id
 - name