## About The Pull Request
As explained in
https://github.com/tgstation/tgstation/pull/74696#discussion_r1166099547
> no, bad 🗞️
> if this is in ui_act the ui datum holds a reference to the user mob,
use that. We do not guarantee that ui_act will be called off topic()
forever (it runs at the end of ticks so is possibly gonna get verb
delay'd at some point)
So yeah let's do that
## Changelog
🆑
code: makes sure cargo computer doesn't use `usr` var inside `ui_act()`
which could cause undefined behaviour
/🆑
674096e74e