turning linked photos into thumbnails is odd
that problem came sometime after addition of attaching (not linking) photos to posts

originally when attaching (not linking) photos to posts, it would thumbnail
seems after fixing problem with linked photos, attached (not linked) never thumbnail

if it is possible for attached (not linked) to have optional thumbnail, might be good?
(under manage attachments in edit post, was originally limited to 6 attachments?)
auto attach is part of latest update? uploads linked photos to posts? with no limit?