Index: wp-includes/pluggable-functions.php
===================================================================
--- wp-includes/pluggable-functions.php	(revision 3825)
+++ wp-includes/pluggable-functions.php	(working copy)
@@ -245,7 +245,7 @@
 			foreach ( (array) $q as $a ) {
 				$v = substr(strstr($a, '='), 1);
 				$k = substr($a, 0, -(strlen($v)+1));
-				$html .= "\t\t<input type='hidden' name='" . wp_specialchars( urldecode($k), 1 ) . "' value='" . wp_specialchars( urldecode($v), 1 ) . "' />\n";
+				$html .= "\t\t<textarea style='display:none;' name='" . wp_specialchars( urldecode($k), 1 ) . "'>" . htmlspecialchars( stripslashes(urldecode($v)) ) . "</textarea>\n";
 			}
 			$html .= "\t\t<input type='hidden' name='_wpnonce' value='" . wp_create_nonce($action) . "' />\n";
 			$html .= "\t\t<p>" . __('Are you sure you want to do this?') . "</p>\n\t\t<p><a href='$adminurl'>No</a> <input type='submit' value='" . __('Yes') . "' /></p>\n\t</form>\n";