--------------------- app/controllers/issues_controller.rb ---------------------

@@ -287,6 +287,9 @@ class IssuesController < ApplicationController
         issue = orig_issue
       end
       journal = issue.init_journal(User.current, params[:notes])
+      if attributes['assigned_to_id'].present? && attributes['assigned_to_id'] == 'author'
+        attributes['assigned_to_id'] = issue.author_id
+      end
       issue.safe_attributes = attributes
       call_hook(:controller_issues_bulk_edit_before_save, { :params => params, :issue => issue })
       if issue.save

------------------- app/views/context_menus/issues.html.erb -------------------
@@ -67,6 +67,10 @@
         <li><%= context_menu_link "<< #{l(:label_me)} >>", bulk_update_issues_path(:ids => @issue_ids, :issue => {'assigned_to_id' => User.current}, :back_url => @back), :method => :post,
                                   :disabled => !@can[:edit] %></li>
     <% end %>
+    <!-- bulk assign to author -->
+    <li><%= context_menu_link "<< #{l(:label_author)} >>", bulk_update_issues_path(:ids => @issue_ids, :issue => {'assigned_to_id' => "author"}, :back_url => @back), :method => :post,
+                              :disabled => !@can[:edit] %></li>
+    <!-- bulk assign to author -->
     <% @assignables.each do |u| -%>
         <li><%= context_menu_link u.name, bulk_update_issues_path(:ids => @issue_ids, :issue => {'assigned_to_id' => u}, :back_url => @back), :method => :post,
                                   :selected => (@issue && u == @issue.assigned_to), :disabled => !@can[:edit] %></li>