[idp saml2] use smart_unicode to encode attribute values
[idp saml2] use smart_unicode to encode attribute values

BryceLohr/authentic,adieu/authentic2,adieu/authentic2,incuna/authentic,BryceLohr/authentic,incuna/authentic,incuna/authentic,incuna/authentic,BryceLohr/authentic,pu239ppy/authentic2,adieu/authentic2,BryceLohr/authentic,adieu/authentic2,pu239ppy/authentic2,pu239ppy/authentic2,pu239ppy/authentic2,incuna/authentic