onshoot Aura Bow Tension Placeholder not working

Summary

The onShoot Aura is not parsing the <caster.var.bow-tension> placeholder correctly.
Instead of returning the bow tension value, the message displays UNDEFINED.

Example Skill Config

test_augment_bonus_shot:
  Skills:
    - onShoot{auraName=augment_bonus_shot;
      onShoot=[
        - message{m="<caster.var.bow-tension>"} @Self
      ];
      fap=true;
      duration=120;
      charges=5;
      forcesync=true} @Self

Steps to Reproduce

1. Add the above skill to your MythicMobs configuration.
2. Run /mm test cast test_augment_bonus_shot.
3. Shoot with a bow.

Current Behavior

The message displays: UNDEFINED instead of a numeric bow tension value.

Expected Behavior

The message should correctly display the bow tension that was used when shooting the bow.

Version

Server 1.21.8 Purpur Using MM Build 5500