[fix/closed]Sorin, Solemn Visitor-1st ignore extra turns

[BAgate]

Describe the Bug:
The first ability does not expire when your next turn starts if you are taking an extra turn.

Which card did behave improperly ?
Sorin, Solemn Visitor

Which update are you using?(date,name)Which type(Duel,Gauntlet,Sealed Deck)
Manalink 2016/01/15: Battle For Zendikar v2,duel

What exactly should be the correct behavior/interaction ?
The 1st ability lasts until your next turn, regardless of how it comes.

Are any other cards possibly affected by this bug ?
-

Note: duration of this ability was previously addressed here.

[Korath]

It's stopping at the beginning of your opponent's next end step.

[Gargaroz]

Fixed in 8e876d2