Changing a flt segment when one segment if overbooked
I am scheduled at the end of the month from SIN-DXB-TUN. It is booked as a stopover in DXB of 25 hrs. I would like to change my flt SIN-DXB so my travel no longer has a stopover. The flts DXB-TUN are overbooked and it wouldn't be possible to rebook that segment? Will EK just change the first segment without trying to rebook the second segment since the segments aren't booked as connecting flts?