If it is jammed it can’t look away.
According to the post above, jamming attacks GPS, command and control, and datalink signals, none of which the intelligent visual navigation system relies upon.
The vision system, maybe even a single camera, determines the position of the munition, visually, by comparing landscapes to maps or some such way. The camera doesn’t look at the target, but rather at trees and hedges and other identifying landscape features to know it’s own location.
The munition then attacks the target because it knows the targets GPS location before launch, or via an update before jamming started.