feat: user without sfa with mfa must perform mfa, without either will be redirected to new page

lib/Auth/Process/SwitchAuth.php

@@ -254,10 +254,10 @@ class SwitchAuth extends \SimpleSAML\Auth\ProcessingFilter
             return false;
         }
 
-        if ($attributes[$this->sfa_alphabet_attr] >= 52 && $attributes[$this->sfa_len_attr] >= 12) {
+        if ($attributes[$this->sfa_alphabet_attr][0] >= 52 && $attributes[$this->sfa_len_attr][0] >= 12) {
             return true;
         }
-        if ($attributes[$this->sfa_alphabet_attr] >= 72 && $attributes[$this->sfa_len_attr] >= 8) {
+        if ($attributes[$this->sfa_alphabet_attr][0] >= 72 && $attributes[$this->sfa_len_attr][0] >= 8) {
             return true;
         }