Upgrading resin walls to thick resin walls no longer allows nesting

[Birdtalon]

Testmerges

n/a

Round ID

No response

Description of the bug

When upgrading a resin wall to a thick resin wall the wall loses its ability to nest.

This is caused by upgrading the wall removes the hive weeds underneath so this return is hit.

cmss13/code/modules/mob/living/carbon/xenomorph/XenoProcs.dm

Lines 670 to 674 in c8d3a20

	var/turf/supplier_turf = get_turf(nest_structural_base)
	var/obj/effect/alien/weeds/supplier_weeds = locate(/obj/effect/alien/weeds) in supplier_turf
	if(!supplier_weeds)
	to_chat(src, SPAN_XENOBOLDNOTICE("There are no weeds here! Nesting hosts requires hive weeds."))
	return

What's the difference with what should have happened?

The wall should retain the ability to nest hosts.

How do we reproduce this bug?

1. Make a normal resin wall on hive weeds
2. Upgrade with hivelord to thick resin
3. Try to nest a human

Issue Bingo

• Issue could be reproduced at least once
• Issue happened in a recent (less than 7 days ago) round
• Couldn't find an existing issue about this (https://github.com/cmss13-devs/cmss13/issues)

[Birdtalon]

Weeds are deleted here. Will look at this properly when I have a bit more time but want to get this documented.

cmss13/code/game/turfs/walls/walls.dm

Lines 91 to 92 in c8d3a20

	if(istype(found_object, /obj/effect/alien/weeds))
	qdel(found_object)