question about copybotted attachments

ok, so over the years....yes..i mean years, i have noticed that when i import a outfit per say, if it has attachments like a prim skirt or maybe a hat, it all comes together when i import it...but if i stick it in a box (object) for storage and come back at a later date and put it on, everything is like....attached to a hand or a foot or some other goofy ass place
is there a way that the attachment point can be saved so that its not doing that?
just something thats bugged the shit outta me since i started, thought someone might know
XoXo
Alexia