Not necessarily, she could have been applying to extend a H1B visa and still have a valid one to travel under. I'm sure there are other cases too, e.g. I was tr

Not necessarily, she could have been applying to extend a H1B visa and still have a valid one to travel under. I'm sure there are other cases too, e.g. I was travelling with H1B while my green card was processing (and had two separate sets of re-entry paperwork).