Flaky test ship_outpost_placement: Cannot read null.icon

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Flaky tests were detected in this test run. This means that there was a failure that was cleared when the tests were simply restarted.
Failures:

ship_outpost_placement: [2025-02-03 06:06:09] Runtime in code/datums/components/attachment.dm,236: Cannot read null.icon
proc name: UpdateButtonIcon (/datum/action/attachment/UpdateButtonIcon)
src: Toggle folding stock (/datum/action/attachment)
call stack:
Toggle folding stock (/datum/action/attachment): UpdateButtonIcon()
the SKM-24v (/obj/item/gun/ballistic/automatic/smg/skm_carbine): update filters()
the SKM-24v (/obj/item/gun/ballistic/automatic/smg/skm_carbine): remove filter("rad_glow")
/datum/component/radioactive (/datum/component/radioactive): Destroy(0)
qdel(/datum/component/radioactive (/datum/component/radioactive), 0)
the SKM-24v (/obj/item/gun/ballistic/automatic/smg/skm_carbine): Destroy(1)
the SKM-24v (/obj/item/gun/ballistic/automatic/smg/skm_carbine): Destroy(1)
the SKM-24v (/obj/item/gun/ballistic/automatic/smg/skm_carbine): Destroy(1)
the SKM-24v (/obj/item/gun/ballistic/automatic/smg/skm_carbine): Destroy(1)
the SKM-24v (/obj/item/gun/ballistic/automatic/smg/skm_carbine): Destroy(1)
...
the floor (110,22,2) (/turf/open/floor/plasteel/patterned/brushed): empty(0, null, null, null)
Gut Combat Freighter (/obj/docking_port/mobile): jump to null space()
Gut Combat Freighter (/obj/docking_port/mobile): Destroy(1)
qdel(Gut Combat Freighter (/obj/docking_port/mobile), 1)
Gut Combat Freighter (/datum/overmap/ship/controlled): Destroy(0)
qdel(Gut Combat Freighter (/datum/overmap/ship/controlled), 0)
/datum/unit_test/ship_outpost_... (/datum/unit_test/ship_outpost_placement): Run()
RunUnitTest(/datum/unit_test/ship_outpost_... (/datum/unit_test/ship_outpost_placement), /list (/list))
/datum/callback (/datum/callback): InvokeAsync() at code/datums/components/attachment.dm:236