Merged r6147 and r6149 from trunk.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/branches/1.2-stable@6160 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/models/issue.rb

@@ -227,6 +227,13 @@ class Issue < ActiveRecord::Base
     @custom_field_values = nil
     result
   end
+  
+  def description=(arg)
+    if arg.is_a?(String)
+      arg = arg.gsub(/(\r\n|\n|\r)/, "\r\n")
+    end
+    write_attribute(:description, arg)
+  end
 
   # Overrides attributes= so that tracker_id gets assigned first
   def attributes_with_tracker_first=(new_attributes, *args)
@@ -870,10 +877,13 @@ class Issue < ActiveRecord::Base
     if @current_journal
       # attributes changes
       (Issue.column_names - %w(id root_id lft rgt lock_version created_on updated_on)).each {|c|
+        before = @issue_before_change.send(c)
+        after = send(c)
+        next if before == after || (before.blank? && after.blank?)
         @current_journal.details << JournalDetail.new(:property => 'attr',
                                                       :prop_key => c,
                                                       :old_value => @issue_before_change.send(c),
-                                                      :value => send(c)) unless send(c)==@issue_before_change.send(c)
+                                                      :value => send(c))
       }
       # custom fields changes
       custom_values.each {|c|