and && don't short-circuit when one side is NaN

and && don't short-circuit when one side is NaN: a task in MiMo-V2.6-RL-harbor-code: MiMo-V2.6-RL Code (Harbor) (Harbor dataset). The idea is: if the query returns NaN (no data points in the window), fall back to 0 so the alert doesn't go unknown. But what I'm seeing is that $result is also NaN…