fuzzing false positive (rectangle corner OF1)

[jmlee337]

game 2 p1: Silver Bracket R2 - eugeneharoldkrabs (Falco) vs Sunshine (Fox).zip

[altf4]

Addressed in v2.3.2

I went with a rather fancy statistical approach for input fuzzing. I fixed up the specific issue here (a heuristic for picking up the target coord was failing). But it might very well wind up being too fancy still. If we keep getting false positives, I'll greatly simplify the check.