--- redmine-2.3.0-ori/app/models/issue.rb	2014-09-18 17:11:51.388167720 +0200
+++ redmine-2.3.0/app/models/issue.rb	2014-09-18 17:28:21.651718421 +0200
@@ -18,6 +18,8 @@
 class Issue < ActiveRecord::Base
   include Redmine::SafeAttributes
   include Redmine::Utils::DateCalculation
+  
+  cattr_accessor :skip_callbacks
 
   belongs_to :project
   belongs_to :tracker
@@ -91,7 +93,7 @@
   }
 
   before_create :default_assign
-  before_save :close_duplicates, :update_done_ratio_from_issue_status, :force_updated_on_change, :update_closed_on
+  before_save :close_duplicates, :update_mirrors, :update_mirrored, :update_done_ratio_from_issue_status, :force_updated_on_change, :update_closed_on, :unless => :skip_callbacks
   after_save {|issue| issue.send :after_project_change if !issue.id_changed? && issue.project_id_changed?} 
   after_save :reschedule_following_issues, :update_nested_set_attributes, :update_parent_attributes, :create_journal
   # Should be after_create but would be called before previous after_save callbacks
@@ -870,6 +872,16 @@
     relations_to.select {|r| r.relation_type == IssueRelation::TYPE_DUPLICATES}.collect {|r| r.issue_from}
   end
 
+  # Returns an array of issues that mirror this one
+  def mirrors
+    relations_to.select {|r| r.relation_type == IssueRelation::TYPE_MIRRORED}.collect {|r| r.issue_from}
+  end
+
+  # Returns an array of issues that mirror this one
+  def mirrored
+    relations_from.select {|r| r.relation_type == IssueRelation::TYPE_MIRRORED}.collect {|r| r.issue_to}
+  end
+
   # Returns the due date or the target due date if any
   # Used on gantt chart
   def due_before
@@ -1330,6 +1342,50 @@
       end
     end
   end
+
+  # Update mirrors
+  def update_mirrors
+    if status_id_changed?
+      logger.error "## #{id} UPDATE MIRROR ## #{relations_to}"
+      logger.error "# #{id} - Relation mirror : #{mirrors}"
+      mirrors.each do |mirror|
+        # Reload is need in case the duplicate was updated by a previous duplicate
+        mirror.reload
+        # Don't re-close it if it's already closed
+        logger.error "## status : #{self.status} mirror : #{mirror.status}"
+        next if mirror.closed? || mirror.status == self.status
+        # Same user and notes
+        if @current_journal
+          mirror.init_journal(@current_journal.user, @current_journal.notes)
+        end
+        Issue.skip_callbacks = true
+        mirror.update_attribute :status, self.status
+        Issue.skip_callbacks = false
+      end
+    end
+  end
+  
+  # Update mirrored
+  def update_mirrored
+    if status_id_changed?
+        logger.error "## #{id} UPDATE MIRRORED ## #{relations_from}"
+        logger.error "# #{id} - Relations mirrored : #{mirrored}"
+        mirrored.each do |mirrored|
+        # Reload is need in case the duplicate was updated by a previous duplicate
+        mirrored.reload
+        # Don't re-close it if it's already closed
+        logger.error "## status : #{self.status} mirrored : #{mirrored.status}"
+        next if mirrored.closed? || mirrored.status == self.status
+        # Same user and notes
+        if @current_journal
+          mirrored.init_journal(@current_journal.user, @current_journal.notes)
+        end
+        Issue.skip_callbacks = true
+        mirrored.update_attribute :status, self.status
+        Issue.skip_callbacks = false
+      end
+    end
+  end
 
   # Make sure updated_on is updated when adding a note and set updated_on now
   # so we can set closed_on with the same value on closing