Bug 1305 (incorrect faceting) confirmation

Hi all,
I have reproduced Issue 1305 without any nested fields. I guess this means
that anybody using more than one shard and faceting with small "size" values
may be in trouble because it gives more or less random results. The complete
script for reproducing the error is attached in my comment.

There are no comments on the issue. Shouldn't this be considered a serious
problem or am I missing something?