also str representation of unicode character is different.

The logic of the patch accidentally changed in 240a8d26 (
{,Propertied}User: Reduce the overhead from Developer role processing.,
2019-02-14). This used to be a patch to not consider 'Developer' as
a local role in SimpleUser.getRolesInContext , but it was changed to
not consider 'Developer' role at all - also as a global role.

SimpleUser are users from the the root acl_users, users from
erp5/acl_users will typically be PropertiedUsers, because this is a PAS
user folder.