Fulmin's Auto Fire Mode - Punch Through does not work

[MqToasty]

Adding Punch Through mods to the Fulmin will list Punch Through values for both the Semi and Auto modes, but it only works in Semi mode and not Auto mode.  Not sure if the bug is with the UI, or with the behavior.

Steps to recreate:

1. Add a Punch Through mod (like Primed Shred) to the Fulmin.  Verify that Punch Through is listed for both the Semi and Auto modes.
2. Spawn enemies in the Ballroom Simulacrum.
3. Go behind a wall and shoot enemies beyond it with Semi mode.  Verify that the shot penetrates the wall.
4. Switch to Auto mode and attempt to shoot the enemy on the other side of the wall.  Verify that the wall blocks the shots, with no Punch Through.