>Fabio,
>
>I agree with Thomas, it's not a bug in the product. However this behavior isn't documented in the help. It's mentioned in How FoxPro Passes Parameters to Subroutines mskb #Q101025, though. Feel free to submit documentation errata.

Then it is a Doc bug.

However, to me, especially for public variables, it is one bad chosen.

I agree with what Jim writes