ce6701fb33
This is a fixup of
commit b00b61e967
Author: Christian Schwarz <me@cschwarz.com>
Date: Sun Nov 21 15:15:23 2021 +0100
status: user-visible replication step number should start at 1
fixes https://github.com/zrepl/zrepl/issues/589
refs https://github.com/zrepl/zrepl/issues/538