How to overload the update() of existings widgets?

My colleague ran into a similar issue a while back. He never did manage to track down the WordPress bug but doing unregister_widget( 'Widget_Class_Being_Extended' ) did the trick.

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)