Fix DamageOtherOnHit.OnDoHit when the target is terminating or deleted (#28690)

Content.Server/Damage/Systems/DamageOtherOnHitSystem.cs

@@ -31,6 +31,8 @@ namespace Content.Server.Damage.Systems
         }
 
         private void OnDoHit(EntityUid uid, DamageOtherOnHitComponent component, ThrowDoHitEvent args)
+        {
+            if (!TerminatingOrDeleted(args.Target))
             {
                 var dmg = _damageable.TryChangeDamage(args.Target, component.Damage, component.IgnoreResistances, origin: args.Component.Thrower);
 
@@ -49,6 +51,7 @@ namespace Content.Server.Damage.Systems
                     var direction = body.LinearVelocity.Normalized();
                     _sharedCameraRecoil.KickCamera(args.Target, direction);
                 }
+            }
 
             // TODO: If more stuff touches this then handle it after.
             if (TryComp<PhysicsComponent>(uid, out var physics))