This is from the reference: Topnotch 3, written by Allen Ascher et al.
"The traditional Chinese dress that she's in the wearing is called a cheongsam."
I just thought it must be a mistake, but however because it is from a reliable reference I wanted to make sure.
Is it wrong?
I think the correct form is "she's wearing" .
The original is completely incorrect.
I wonder if the writer was going to put something like "... that she's wearing in the photo is called ..." and got muddled up.
Remember - if you don't use correct capitalisation, punctuation and spacing, anything you write will be incorrect.