Two years ago I moved a (Lowes) Chicago Hardy from its little, very light 1-gallon pot to a 3-gallon. It was during the Summer, and the poor thing only put on 2 leaves by season's end, having dropped every single one it had from shock.
Yeah, I plucked at the roots...
I was convinced I'd killed it, but luckily it woke up last year.
Maybe if you stake and tent it it'll perk up.
Extra humidity seems to help them bounce back faster, since the leaves don't demand as much moisture from the roots.