decrepit said..
One thing for sure, straightening it will weaken it.
Could well be fine to keep using.
Is it a gradual bend over several centimeters, or a sharp kink.
A sharp kink could be a problem, but a gradual bend should be OK
Not an obvious kink, just looks like it has been stretched outwards from where the front attachment of the harness line sits.
Maybe it got an even pull on both ends of the line before one side broke.
!