Normation/rudder-packages — pull request #168 by Kegeruneku (2013-10-23 13:45:35+00:00)
Title: Fixes #4062: Prevent an upgrade failure in case of a property modificati...

...on reverted by a package upgrade

Ticket: http://www.rudder-project.org/redmine/issues/4062

To be merged in 2.7