First regular run of Godda humsafar(19/04) will use same no of inaugural run(02307/08). Booking starts today i.e. 08/04. From 26.04.21 onwards, it will use 02349/50 for regular run.
I think this is done as two different train can't be booked with same no. 02349/50 will be used by SF special till 14/04. So booking of 02349 HS for 26th can start only after 14th. Accordingly, booking for 26th will actually start on 18/04 as notified in above PR.