Avoiding double jeopardy

[fishtownraider]

My rules file places a £5 fixed lay if the lay price is <12.5 and a £60 liability lay if the lay price is >12. I can't get it any more precise because the Fixed Odds condition counter only accepts tick values. I have matched/unmatched bets =0 conditions. Bet Angel today placed two trades at exactly the same time:
04/03/2026 17:36:35: [G_Auto 1] : £ 5.00 Lay bet placed on 6. Swift Omerta at 12. Entirely unmatched when it initially reached the market. Ref: 420600453521
04/03/2026 17:36:35: [G_Auto 1] : £ 5.22 Lay bet placed on 6. Swift Omerta at 12.5. Fully matched at 12.2614942528736. Ref: 420600453488
The £5 fixed lay was later matched (although there's no mention in the log). Fortunately the lay lost, but is there a way to achieve my objective without creating an odds gap in which no lays would be placed?