bugs in new docs?

Hi, I just quickly listed thru some concrete parts of new docs and would like to ask about two following cases: - somewhere in ports chapter there is an example showing direct copying of large files (here two jpegs). The problem is target and source file are both the same. Is this correct? - in series chapter after following diagram: red gree blue --- ^ | colors with arrow referring to tail of series following code follows: print tail? colors == false ... shouldn't it return 'true here? just curious ... Thanks, -pekr-