Index: wp-admin/ms-sites.php
===================================================================
--- wp-admin/ms-sites.php	(revision 14682)
+++ wp-admin/ms-sites.php	(working copy)
@@ -246,10 +246,10 @@
 						if ( $val->user_id != $current_user->data->ID ) {
 							?>
 							<td>
-								<select name="role[<?php echo $val->user_id ?>]" id="new_role"><?php
+								<select name="role[<?php echo $val->user_id ?>]" id="new_role_1"><?php
 									foreach ( $editblog_roles as $role => $role_assoc ){
 										$name = translate_user_role( $role_assoc['name'] );
-										echo '<option ' . selected( $role, $existing_role ) . ' value="' . esc_attr( $role ) . '">' . esc_html( $name ) . '</option>';
+										echo '<option ' . selected( $role, $existing_role, false ) . ' value="' . esc_attr( $role ) . '">' . esc_html( $name ) . '</option>';
 									}
 									?>
 								</select>
@@ -282,7 +282,7 @@
 							<tr>
 								<th scope="row"><?php _e( 'Role:' ) ?></th>
 								<td>
-									<select name="new_role" id="new_role">
+									<select name="new_role" id="new_role_0">
 									<?php
 									reset( $editblog_roles );
 									foreach ( $editblog_roles as $role => $role_assoc ){