[fixed] Gishath, Sun's Avatar

[Konatsu]

Gishath, Sun's Avatar's ability to put another Gishath, Sun's Avatar on the battlefield causes a bug.
It is a legend and one must be sacrificed.
However, when it is sacrificed, a new Gishath, Sun's Avatar is created, which again forces the player to choose a sacrifice and the game loses progress.

-P.S.
At first glance, there appears to be no real harm, but there are problems with playing with Sneak Attack, etc.

[drool66]

Fixed in 7f0a6c5 in fact in commit d7b555.