It is no longer used and should've be removed on update. Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
At initialization contract saves master script hash that allows to re-initialize or migrate contract. Signed-off-by: Alex Vanin <alexey@nspcc.ru>