Multiple errors in flaky test shapeshift_spell

[github-actions]

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:

shapeshift_spell: [17:55:38] Runtime in code/game/machinery/doors/airlock.dm,478: Cannot read null._status_traits
proc name: shock (/obj/machinery/door/airlock/shock)
src: NTMS-037 Cargo Bay (/obj/machinery/door/airlock/shuttle)
src.loc: the shuttle floor (201,202,10) (/turf/open/floor/mineral/plastitanium)
call stack:
NTMS-037 Cargo Bay (/obj/machinery/door/airlock/shuttle): shock(null, 50, null, null)
/datum/wires/airlock (/datum/wires/airlock): on cut("Auxiliary Power 1", 0, null)
/datum/wires/airlock (/datum/wires/airlock): cut("Auxiliary Power 1", null)
/datum/wires/airlock (/datum/wires/airlock): cut all(null)
NTMS-037 Cargo Bay (/obj/machinery/door/airlock/shuttle): on break(NTMS-037 Cargo Bay (/obj/machinery/door/airlock/shuttle), "melee")
NTMS-037 Cargo Bay (/obj/machinery/door/airlock/shuttle):  SendSignal("machinery_broken", /list (/list))
NTMS-037 Cargo Bay (/obj/machinery/door/airlock/shuttle): atom break("melee")
NTMS-037 Cargo Bay (/obj/machinery/door/airlock/shuttle): take damage(20.3, "brute", "melee", 1, 8, 0)
NTMS-037 Cargo Bay (/obj/machinery/door/airlock/shuttle): take damage(29, "brute", "melee", 1, 8, 0)
NTMS-037 Cargo Bay (/obj/machinery/door/airlock/shuttle): take damage(29, "brute", "melee", 1, 8, 0)
...
NTMS-037 Cargo Bay (/obj/machinery/door/airlock/shuttle): attack basic mob(the mi-go (/mob/living/basic/migo), null)
the mi-go (/mob/living/basic/migo): melee attack(NTMS-037 Cargo Bay (/obj/machinery/door/airlock/shuttle), null, 0)
/datum/ai_behavior/attack_obst... (/datum/ai_behavior/attack_obstructions): attack in direction(/datum/ai_controller/basic_con... (/datum/ai_controller/basic_controller/simple_hostile_obstacles), the mi-go (/mob/living/basic/migo), 4)
/datum/ai_behavior/attack_obst... (/datum/ai_behavior/attack_obstructions): perform(2, /datum/ai_controller/basic_con... (/datum/ai_controller/basic_controller/simple_hostile_obstacles), "BB_basic_current_target")
/datum/ai_controller/basic_con... (/datum/ai_controller/basic_controller/simple_hostile_obstacles): ProcessBehavior(2, /datum/ai_behavior/attack_obst... (/datum/ai_behavior/attack_obstructions))
/datum/ai_controller/basic_con... (/datum/ai_controller/basic_controller/simple_hostile_obstacles): process(0.1)
AI Behavior Ticker (/datum/controller/subsystem/processing/ai_behaviors): fire(0)
Master (/datum/controller/master): RunQueue()
Master (/datum/controller/master): StartProcessing(0) at code/game/machinery/doors/airlock.dm:478
shapeshift_spell: [17:55:38] Runtime in code/game/machinery/doors/airlock.dm,478: Cannot read null._status_traits
proc name: shock (/obj/machinery/door/airlock/shock)
src: NTMS-037 Cargo Bay (/obj/machinery/door/airlock/shuttle)
src.loc: the shuttle floor (201,202,10) (/turf/open/floor/mineral/plastitanium)
call stack:
NTMS-037 Cargo Bay (/obj/machinery/door/airlock/shuttle): shock(null, 50, null, null)
/datum/wires/airlock (/datum/wires/airlock): on cut("Auxiliary Power 2", 0, null)
/datum/wires/airlock (/datum/wires/airlock): cut("Auxiliary Power 2", null)
/datum/wires/airlock (/datum/wires/airlock): cut all(null)
NTMS-037 Cargo Bay (/obj/machinery/door/airlock/shuttle): on break(NTMS-037 Cargo Bay (/obj/machinery/door/airlock/shuttle), "melee")
NTMS-037 Cargo Bay (/obj/machinery/door/airlock/shuttle):  SendSignal("machinery_broken", /list (/list))
NTMS-037 Cargo Bay (/obj/machinery/door/airlock/shuttle): atom break("melee")
NTMS-037 Cargo Bay (/obj/machinery/door/airlock/shuttle): take damage(20.3, "brute", "melee", 1, 8, 0)
NTMS-037 Cargo Bay (/obj/machinery/door/airlock/shuttle): take damage(29, "brute", "melee", 1, 8, 0)
NTMS-037 Cargo Bay (/obj/machinery/door/airlock/shuttle): take damage(29, "brute", "melee", 1, 8, 0)
...
NTMS-037 Cargo Bay (/obj/machinery/door/airlock/shuttle): attack basic mob(the mi-go (/mob/living/basic/migo), null)
the mi-go (/mob/living/basic/migo): melee attack(NTMS-037 Cargo Bay (/obj/machinery/door/airlock/shuttle), null, 0)
/datum/ai_behavior/attack_obst... (/datum/ai_behavior/attack_obstructions): attack in direction(/datum/ai_controller/basic_con... (/datum/ai_controller/basic_controller/simple_hostile_obstacles), the mi-go (/mob/living/basic/migo), 4)
/datum/ai_behavior/attack_obst... (/datum/ai_behavior/attack_obstructions): perform(2, /datum/ai_controller/basic_con... (/datum/ai_controller/basic_controller/simple_hostile_obstacles), "BB_basic_current_target")
/datum/ai_controller/basic_con... (/datum/ai_controller/basic_controller/simple_hostile_obstacles): ProcessBehavior(2, /datum/ai_behavior/attack_obst... (/datum/ai_behavior/attack_obstructions))
/datum/ai_controller/basic_con... (/datum/ai_controller/basic_controller/simple_hostile_obstacles): process(0.1)
AI Behavior Ticker (/datum/controller/subsystem/processing/ai_behaviors): fire(0)
Master (/datum/controller/master): RunQueue()
Master (/datum/controller/master): StartProcessing(0) at code/game/machinery/doors/airlock.dm:478