An undocumented immigrant who used a false Social Security number to get a job has been given a second chance to fight an effort to deport her to her native Ecuador.The 7th U.S. Circuit Court of Appeals on Wednesday sent Maria Eudofilia Arias’ application for withholding of removal back to the Board of Immigration Appeals for another look.The court held the immigration board misapplied the test then in place — it has since been discarded — for determining whether Arias’ offense constituted a crime …