Well, I have searched the bugs list, and didnt find this, so I will report.
It happened in the trainer, when I was facing the Fake God Paradox. I used the Arctic Octopus skill to congeal a gigantic blessed Deja Vu. But even congealed, the Deja Vu could create a copy of itself. And after doing that, it could still create another copy, and its copy too. I reversed time on the original Deja Vu using Eternity, and the copy one, also congealed, did a copy of itself. The skill name was still under both cards.
Thats it. Thanks.