The crash on unequip companion's clothes.

### Describe the bug

The game is crashed when I try to change companion's shoes.

### Attach save file

[Хилдебран-trimmed.tar.gz](https://github.com/user-attachments/files/25619662/-trimmed.tar.gz)

### Steps to reproduce

1. Load the attached save,
2. Move east,
3. Sort armor,
4. Unequip broken dress shoes ('u' key by default) or any other clothes.

The game is crashed.

### Expected behavior

The clothes are unequiped.

### Screenshots

_No response_

### Versions and configuration

- OS: Windows
- OS Version: 10.0.19045.6456 (22H2)
- Game Version: cdda-experimental-2026-02-28-0414-dirty [64-bit]
- Graphics Version: Tiles
- Game Language: Russian
- Mods loaded: [
Тёмные Дни Впереди [dda],
Отключить потребности у NPC [no_npc_food],
Портальные штормы игнорируют NPC [personal_portal_storms]
]

### Additional context

_No response_

Start by loading the attached save on Windows and follow the reported steps: move east, sort armor, and unequip the broken dress shoes or another clothing item. No source file, test, or entry point is named, so trace the crash from this reproduction. Done means the companion's clothes can be unequipped without the game crashing.

Written by the indexing model from the issue text.