work on union search see #2476


git-svn-id: https://forge.indepnet.net/svn/glpi/trunk@22475 35612d4c-9d10-0410-837c-bf9dd1be60d7
fix reservation search


git-svn-id: https://forge.indepnet.net/svn/glpi/trunk@22476 35612d4c-9d10-0410-837c-bf9dd1be60d7
fix display see #2476


git-svn-id: https://forge.indepnet.net/svn/glpi/trunk@22477 35612d4c-9d10-0410-837c-bf9dd1be60d7
improve last


git-svn-id: https://forge.indepnet.net/svn/glpi/trunk@22478 35612d4c-9d10-0410-837c-bf9dd1be60d7