Bugfix: forgot to set b.mask
Bugfix: forgot to set b.mask

pfig/streamtools,nytlabs/streamtools,nytlabs/streamtools,deepglint/streamtools,wxdublin/streamtools,jacqui/streamtools,pfig/streamtools,deepglint/streamtools,jacqui/streamtools,jacqui/streamtools,wxdublin/streamtools,deepglint/streamtools,wxdublin/streamtools,pfig/streamtools,pfig/streamtools,nytlabs/streamtools,jacqui/streamtools,nytlabs/streamtools,wxdublin/streamtools,deepglint/streamtools