There seems to be a bug when I try to view deleted posts from a single write panel and we have enable the "Hide posts made with Write panels in the edit section in the Post panel" option.
When I'm on a panel and click on "Trash" the link is:
But nothing appears. To view them, we have to add "&filter-posts=1&custom-write-panel-id=N", for instance:
I don't think it's something that critical, but it's a detail.