hack to get admin recognized again

mymodule/themes/fancytheme/core/loginuserpass.php

@@ -15,7 +15,6 @@ $this->includeAtTemplateBase('includes/header.php');
             </div>
         </div>
 
-
 <?php
 if ($this->data['errorcode'] !== null) {
 ?>
@@ -54,7 +53,14 @@ if ($this->data['errorcode'] !== null) {
             <form method="post">
                 <h2 class="sr-only">Login Form</h2>
                 <div class="illustration"><img src="/img/M4_LAB_LOGO.png" width="130"></div>
+		<?php
+			#hacky workaround: if admin is contained in AuthState string, don't dispaly email login field
+			if (strpos(_GET('AuthState'), 'admin') !== false){
+                		<div class="form-group"><input id="username" class="form-control" type="text" name="username" placeholder="Administrator"></div>
+			}else{
                 		<div class="form-group"><input id="username" class="form-control" type="email" name="username" placeholder="E-Mail-Adresse"></div>
+			}
+		?>
                 <div class="form-group"><input id="password" class="form-control" type="password" name="password" placeholder="Passwort"></div><a class="text-right forgot" href="/account/forgotPwd">Passwort vergessen?</a>
                 <div class="form-group"><button class="btn btn-primary btn-block" type="submit" style="background-color: #8a348b;"><strong>Anmelden</strong></button><a class="btn btn-primary btn-block" type="" style="background-color: rgb(234,234,234);color: rgb(0,0,0);" href="/account/registration"><strong>Neues Benutzerkonto anlegen</strong></a></div>
                 <input type="hidden" id="processing_trans" value="<?php echo $this->t('{login:processing}'); ?>" />