In this particular case, no mod was ever doing SAY xyz #-1 because it didn't work even before, so it wasn't in the test cases. In general, I agree with you that using proper unit testing would be faster than having cmorgan install all mods under the Sun twenty times.
I think aVENGER's comment was that he was using this pre-214. Now, it may not have written 2^32 before, but it's always done 2^31 or whatever and it was used in the prehistoric eras.
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