bug reporting

[Clinton Reddekop]

Hi All,
I tracked down a bug in kdeedu/marble the other day.  I built it from
svn trunk, with emerge.  The bug was in the marble code, and it looked
like the code just hadn't been finished yet.  I'm pretty sure it had
nothing to do with the Windows porting.  Anyway, my question is, if I
find a bug in trunk, should I report it, or is it normal for trunk to
contain work in progress, which may not be functional (or in some
cases, not even compile)?
Thanks,
Clint