Error in development version (fix rigid small)

Hi all!

I used the development version (6Feb) to simulate rigid bodies using fix/rigid/small. I got missing bond error, so to check that result I run same script employing the stable version (9Dez), which didn't give that error. Also, I checked that same results (without error) are obtained when employing just 1 proc. I noticed that in pre_neighbor() routine in 9Dez version, the following part: