Bug with apache graph in trends

I've done some tests to get apache statistics graph in the trends column. I use the "0.0.0.0 hostname" format in the bb-hosts file so that i can solve the address with dns and hosts file. In this situation i don't get the apache graph. Doing a bbcmd bbtest-net --debug hostname i get those lines in the output of the command and i don't get the graph

URL : http://0.0.0.0/server-status?auto HTTP status : 0 HTTP headers (NULL) HTTP output (NULL)

If i put the correct ip address in the bb-hosts file i get the graph and the status page in the debug output

Hoping this can help. Francesco Duranti