Fixed setting new item.data when a plugin updates it.
Fixed setting new item.data when a plugin updates it.

sokeroner/PreloadJS,dmnsgn/PreloadJS,Teino1978-Corp/Teino1978-Corp-PreloadJS,sokeroner/PreloadJS,SpringRoll/PreloadJS,not-only-code/PreloadJS,cnbin/PreloadJS,tehvgg/PreloadJS,ebabel-eu/PreloadJS,CreateJS/PreloadJS,cnbin/PreloadJS,andrew168/PreloadJS,andrew168/PreloadJS,SpringRoll/PreloadJS,Teino1978-Corp/Teino1978-Corp-PreloadJS,tehvgg/PreloadJS,CreateJS/PreloadJS