Twitter Inc is heading into its second full workweek underneath Elon Musk with half its workforce, mounting losses and a few surprising reversals to its plans. The social-media firm laid off shut to three,700 individuals on Friday, solely to succeed in out quickly thereafter to dozens of workers who it determined have been both fired in error or too important to the modifications the billionaire businessman desires to make. One other of Musk’s key early objectives — including verification test marks for members of its month-to-month subscription service — is being delayed till Wednesday to keep away from potential chaos…