[Libreoffice] communicating bugs found in build form master

Hi *,

So now and then I (try to) build from master and just do some work in 
the office.
It is however rather irregular, and often I do not have much free time 
to spent.

A.  If I find an issue, is it OK if I mail this list or just ping on IRC?
Just to prevent adding bugs that are already noticed (not in bugzilla) 
and maybe even fixed in master after I udated?

e.g. I wrote https://bugs.freedesktop.org/show_bug.cgi?id=39979
but can on the other hand hardly imagine that it hasn't been tracked 
already..

B. Do we already have a QA mail list?

Thanks,

--
 - Cor
 - http://nl.libreoffice.org