Found an even better reproduction method: there is a program (in universe) called "Dr. Racket" that, due to its use of a loading-bar splash window, causes all sorts of havoc. Simply opening the program results in a launcher item with two tags, even though only one window is open.
Found an even better reproduction method: there is a program (in universe) called "Dr. Racket" that, due to its use of a loading-bar splash window, causes all sorts of havoc. Simply opening the program results in a launcher item with two tags, even though only one window is open.
(Dr. Racket is an IDE for a variant of LISP)