Ticket #3402: 3402.diff

includes/users/template.php

@@ -477 +477 @@
                 $user_id = bbp_get_user_id( $user_id );
                 if ( empty( $user_id ) ) {
                         return false;
                 }
 
                 // Parse default arguments
                 $r = bbp_parse_args( $args, array(
                         'user_id' => $user_id,
                         'before'  => '',
                         'after'   => '',
                         'force'   => ''
                 ), 'get_user_nicename' );
 
                 // Get the user data and nicename
                 if ( empty( $r['force'] ) ) {
-                        $user     = get_userdata( $user_id );
+                        $user = get_userdata( $user_id );
+                        if ( ! $user ) {
+                                return false;
+                        }
+
                         $nicename = $user->user_nicename;
 
                 // Force the nicename to something else
                 } else {
                         $nicename = (string) $r['force'];
                 }
 
                 // Maybe wrap the nicename
                 $retval = ! empty( $nicename )
                         ? $r['before'] . esc_html( $nicename ) . $r['after']
                         : '';
 
                 // Filter & return
                 return (string) apply_filters( 'bbp_get_user_nicename', $retval, $user_id, $r, $args );
         }