breach swapping

There is a bug that allows you to combine the attributes of two weapons, for example, doing a sweep attack with an axe while preserving the damage of the axe.
This is done by changing to the desired item in the same tick in which you hit, allowing you to make a hit that can disable the shield or, accumulate the Breach effect with the damage of a sword, allowing you to do massive damage, being something quite unfair when fighting. There are even youtubers who base their content on showing how game breaker this technique is.