Warrior's Arcing Slice behaving like other weapons' burst skills

[Cougre.6543]

The warrior's greatsword burst skill "Arcing Slice" can sometimes assume the behavior of other burst skills. For example, if one were to use a dagger in the other weapon set, then Arcing Slice can sometimes use Breaching Strike's animation, its property of leaping forward, and presumably the single target cap.I've observed this both as a spellbreaker and core warrior, with the dagger's and axe's burst skills, and it does not seem to be limited to any specific race. To make recreation easier, it appears to happen more often the faster warrior is played, and specifically when using skills in both weapon sets, and using Arcing Slice as soon as possible after weapon swapping.