On Sun, 27 Dec 2015, William Stein wrote:
touch this code, then it should split the poset to connected components, draw them, and then adjoin the pictures.You should put this in a trac ticket.
In principle, yes. But it will propably just be buried in nice-to-have enhancements, as this one is not a clear bug.
(Compare to http://trac.sagemath.org/ticket/18936 which just needs someone to check that I resolved the conflict correctly. It has waited that for five weeks.)
-- Jori Mäntysalo