Did Halsey REPLACE Camila Cabello on The Chainsmokers’ “Closer”?

Did Halsey REPLACE Camila Cabello on The Chainsmokers’ “Closer”?

There is a clip making it’s way around the internet that people believe is a recorded demo of Camila Cabello singing the Chainsmoker’s hit, “Closer.” Which could mean that Camila may have been up against Halsey for the featured vocals.