I'm certainly not an expert on Catholic records but I can't see anything in the wording to suggest that the entry refers to 'churching'. Churching is for the mother, not the child, as the link explains.
What you will sometimes see in CofE baptism registers is a second entry for a child who had been privately baptised, ie not in front of a congregation, so usually - but not necessarily, at home. This second ceremony is for the congregation to receive the child into the church, and it looks to me as if the Catholic tradition is similar (although I did find a Catholic church whose website
states that there can be no such thing as a private baptism).