Tests: `guy != nullptr` randomly failing

Describe the bug

In all listed cases are also some armor display tests failing and this may be related. This specific random failure appears to be comparatively rare.

Unfortunately I lack the privileges in this repo to search through all workflow logs but I feel like I have seen this before. Can't prove it with additional links though.

Attach save file

• https://github.com/CleverRaven/Cataclysm-DDA/actions/runs/8850367074/job/24304548230?pr=73300#step:17:718
• https://github.com/CleverRaven/Cataclysm-DDA/actions/runs/8908067047/job/24465580062?pr=73432#step:17:814

Steps to reproduce

1. Run tests.
2. Win the rng lottery.
3. Witness above failure.

Expected behavior

guy != nullptr

Screenshots

No response

Versions and configuration

n/a

Additional context

No response