Fix wallet `info` method, to work also before hardfork 17
Before hardfork 17 there was no "post" reward fund. When info was
called, when replay stopped at some earlier hardfork than 17, method
failed because of missing fund.
Edited by Piotr Batko
Before hardfork 17 there was no "post" reward fund. When info was
called, when replay stopped at some earlier hardfork than 17, method
failed because of missing fund.