Bug in Android App: Skipping En Passant moves during game review

While reviewing a game where an en passant capture occured (lichess.org/Eyvr4PjG) I have fast forwarded moves by keeping the forward button pressed. When it passes the en passant move and then I fast forward backwards, to fast forward over it again, the displayed pawns captured will increase indefinitely.

Android App version 4.11.1
On Android 6.0.1

Screenshot: imageshack.com/i/pnvTqy7Tp

Thanks; we'll look into it!