Ignore RefundTransfer from unknown nodes
Ignore RefundTransfer from unknown nodes

charles-cooper/raiden,tomashaber/raiden,hackaugusto/raiden,tomashaber/raiden,tomashaber/raiden,tomaaron/raiden,tomaaron/raiden,tomaaron/raiden,tomaaron/raiden,hackaugusto/raiden,tomashaber/raiden,tomashaber/raiden,charles-cooper/raiden