Add fallback for null commissions
Add fallback for null commissions

joshmh/lamassu-server,naconner/lamassu-server,lamassu/lamassu-server,lamassu/lamassu-server,joshmh/lamassu-server,joshmh/lamassu-server,naconner/lamassu-server,naconner/lamassu-server,joshmh/lamassu-server,lamassu/lamassu-server