[Bug]: piecewise_jerk_speed_optimizer speed limit error

[daohu527]

System Information / Logs

v_upper_bound is reassigned

apollo-lite/modules/planning/tasks/optimizers/piecewise_jerk_speed/piecewise_jerk_speed_optimizer.cc

Lines 156 to 157 in 74adfa4

	double v_upper_bound = FLAGS_planning_upper_speed_limit;
	v_upper_bound = speed_limit.GetSpeedLimitByS(path_s);

Steps to Reproduce

1. GetSpeedLimitByS retrieves the value
2. Check what the value of v_upper_bound is.

Expected vs Actual Behavior

The global FLAGS_planning_upper_speed_limit setting has no effect, but GetSpeedLimitByS does.

Additional Information

No response