This is not true at all, in the domain of computer science there are no concrete examples of this.
Terry Tao once famously published a result with non-mathematicians Denton et al., and was bombarded by responses (including my own first math paper) showing the result previously published in many different ways in several fields of math. Of all that Tao has accomplished as a Fields medalist and espoused “greatest living mathematician”, this became the most famous single moment of his career.
https://terrytao.wordpress.com/2019/08/13/eigenvectors-from-...