[SEC][FIX] user variable : be sure that the user is not already defined by PHP on hosts that still have the php.ini config "register_globals = On". This was causing a lot of side effects, especially in the admin users panel.
[SEC][FIX] user variable : be sure that the user is not already defined by PHP on hosts that still have the php.ini config "register_globals = On". This was causing a lot of side effects, especially in the admin users panel.

git-svn-id: a7fabbc6a7c54ea5c67cbd16bd322330fd10cc35@31809 b456876b-0849-0410-b77d-98878d47e9d5

changi67/tiki,oregional/tiki,oregional/tiki,tikiorg/tiki,tikiorg/tiki,tikiorg/tiki,changi67/tiki,oregional/tiki,tikiorg/tiki,changi67/tiki,oregional/tiki,changi67/tiki,changi67/tiki