Hi!
It should be a basic requirement of any SPARQL engine
that it should be
able to handle path queries that contain cycles.
So I did some simple checks, and on simple examples Blazegraph handles
cycles just fine. However, on more complex queries, the cycles seem to
be causing trouble. I don't know yet why, I'll look at it further,
probably next week.
So the problem is not "handling cycles" in general, it is handling some
specific data set, and most probably is a consequence of some bug. I'll
report when I have more data about what exactly triggers the bug.
--
Stas Malyshev
smalyshev(a)wikimedia.org