H1b transfer denied and new petition with same employer

My H1b transfer to new company A got denied yesterday. I already started working for A with H1b receipt.Now, they are saying that they will file a new petition by Aug 1 and i will be able to return to work. Is that correct?If the same employer re-applies my petition for same position, can i start working immediately or should i wait till the approval ?

Hi, What did you do about this ?