[MIRROR] Attempts to put out the CI fires (#28636)

* Attempts to put out the CI fires (#84277)

## About The Pull Request

![image](https://github.com/tgstation/tgstation/assets/13398309/d58de3f2-5adc-48f0-b207-608499f04250)

A lot of this all of a sudden, I am going to assume it's related to the
recent spark changes, which are most likely causing (literal) fires in
the testing area.

Fixes https://github.com/tgstation/tgstation/issues/84161
Fixes https://github.com/NovaSector/NovaSector/issues/3123

I'm still testing this one with a few CI runs but the timelines match up
with roughly around the time of the spark PR; it's most likely the
culprit.

EDIT: 8 CI runs so far and the issue has not come up, I am fairly
confident it was the sparks + fuel puddle combination that was the
problem.
EDIT EDIT: Found one more issue with /datum/material/plasma that needs
to be dealt with.
EDIT EDIT EDIT: Issue resolved

## Why It's Good For The Game

Save the burninating for in-game please!

## Changelog

Not player facing

* Attempts to put out the CI fires

---------

Co-authored-by: Bloop <13398309+vinylspiders@users.noreply.github.com>

code/game/objects/effects/decals/cleanable/misc.dm

@@ -458,7 +458,6 @@
 		COMSIG_TURF_MOVABLE_THROW_LANDED = PROC_REF(ignition_trigger),
 	)
 	AddElement(/datum/element/connect_loc, ignition_trigger_connections)
-	RegisterSignal(src, COMSIG_ATOM_TOUCHED_SPARKS, PROC_REF(ignition_trigger))
 	for(var/obj/effect/decal/cleanable/fuel_pool/pool in get_turf(src)) //Can't use locate because we also belong to that turf
 		if(pool == src)
 			continue
@@ -468,6 +467,15 @@
 	if(burn_stacks)
 		burn_amount = max(min(burn_stacks, 10), 1)
 
+	return INITIALIZE_HINT_LATELOAD
+
+// Just in case of fires, do this after mapload.
+/obj/effect/decal/cleanable/fuel_pool/LateInitialize()
+// We don't want to burn down the create_and_destroy test area
+#ifndef UNIT_TESTS
+	RegisterSignal(src, COMSIG_ATOM_TOUCHED_SPARKS, PROC_REF(ignition_trigger))
+#endif
+
 /obj/effect/decal/cleanable/fuel_pool/fire_act(exposed_temperature, exposed_volume)
 	. = ..()
 	ignite()