42. Relation back of trustee's title

The bankruptcy of a debtor, whether it takes place on the debtor's own petition or upon that of a creditor or creditors, is deemed to have relation back to and to commence at -

the time of the act of bankruptcy being committed on which a receiving order is made against him; or

if the bankrupt is proved to have committed more acts of bankruptcy than one, the time of the first of the acts of bankruptcy proved to have been committed by the bankrupt within 3 months next preceding the date of the presentation of the bankruptcy petition, but no bankruptcy petition, receiving order or adjudication shall be rendered invalid by reason of any act of bankruptcy anterior to the debt of the petitioning creditor.