Putting gun away with UGL on.

## Testmerges
#9894: 'Multiz indicator' by Detective-Google at commit 5dbc10a0d2
#10340: 'New on_mobs for splints, bandages and blood overlays (Other changes to blood included)' by LC4492 at commit 14a671a4e4
#10830: 'cm-live' by hry-gh at commit a498af109b
#10536: 'Tailstabs cross Z & Tailstab behavior for most obj/structures' by Drulikar at commit 70af72e2ac
#10375: 'Corporate Bodyguard' by realforest2001 at commit 39eb4ecc95
#10879: '[WIP] Semi-Playable Fauna' by realforest2001 at commit e0091b0678

## Round ID
30439

## Description of the bug
If you put an MK1 on your back with its ugl active and then take it out again, it doesn't update the UGL into the active state.

## What's the difference with what should have happened?
It should have the UGL selected to show it is active.

## How do we reproduce this bug?
1. load UGL with grenades
2. put into armor slot without disabling UGL
3. pull it out again and the UGL is on but shown as off.

## Attached logs
```
N/A
```

## Additional details
- Author: 0nemore
- Admin: Forest2001
- Note: None