[authsaml2] fix wrong field and variable names in commit 4265999a88ce
[authsaml2] fix wrong field and variable names in commit 4265999a88ce

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