Hi Zsolt, This is rare and hard to hit. But 18 accepts this state, and the damage only shows up after the upgrade.
Someone told me a story today. If you build a payroll app and it breaks one time in x, would you ship it? That one time is someone who does not get paid. A rare bug is still a real bug for whoever hits it. So I think it is worth fixing The patch looks right to me Thanks, Shihao
