Upload one picture to the one collection, attach a text note to this picture afterwards. If user upload this picture again to the same collection, the note cannot to be uploaded. (Since in the current uploading scheme, this picture is recognised as uploaded and it will not be uploaded twice, although user has attached a new text note to this picture)
Upload one picture to the one collection, attach a text note to this picture afterwards. If user upload this picture again to the same collection, the note cannot to be uploaded. (Since in the current uploading scheme, this picture is recognised as uploaded and it will not be uploaded twice, although user has attached a new text note to this picture)