Fix race condition in sub-bank maker
Fixes a race condition in the sub-bank maker that occurs when an event fires no lines. Possibly related to #380 (closed), and should solve the issue @cagapopo mentions here: !1018 (comment 6133478)
Fixes a race condition in the sub-bank maker that occurs when an event fires no lines. Possibly related to #380 (closed), and should solve the issue @cagapopo mentions here: !1018 (comment 6133478)