All RAM Cache Manager object from erp5_web had the same id than user_ram_cache from erp5_xhtml_style. So the cache used was always the same for this five caches.
After investigation this problem come from the fact that this cache object have been cloned each others and it appears that a zope bug didn't change the cache id in this cases. We are working to solve the zope bug to not have this behaviour anymore on next clonned caches, but for now, this commit fix existing ones.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@33449 20353a03-c40f-0410-a6d1-a30d3c3de9de