Mechs screen refdrop (#17511)

* Atomization

* sfaasf

---------

Co-authored-by: FluffyGhost <FluffyGhost>

code/modules/heavy_vehicle/interface/screen_objects.dm

@@ -29,6 +29,10 @@
 		return INITIALIZE_HINT_QDEL
 	owner = newowner
 
+/obj/screen/mecha/Destroy(force)
+	owner = null
+	. = ..()
+
 /obj/screen/mecha/Click()
 	return (!owner || !usr.incapacitated() && (usr == owner || usr.loc == owner))
 
@@ -42,8 +46,8 @@
 	maptext_width = 120
 
 /obj/screen/mecha/hardpoint/Destroy()
-	owner = null
 	holding = null
+	hardpoint_tag = null
 	. = ..()
 
 /obj/screen/mecha/hardpoint/MouseDrop()

html/changelogs/FluffyGhost-mechs_screen_refdrop.yml

@@ -0,0 +1,41 @@
+################################
+# Example Changelog File
+#
+# Note: This file, and files beginning with ".", and files that don't end in ".yml" will not be read. If you change this file, you will look really dumb.
+#
+# Your changelog will be merged with a master changelog. (New stuff added only, and only on the date entry for the day it was merged.)
+# When it is, any changes listed below will disappear.
+#
+# Valid Prefixes:
+#   bugfix
+#   wip (For works in progress)
+#   tweak
+#   soundadd
+#   sounddel
+#   rscadd (general adding of nice things)
+#   rscdel (general deleting of nice things)
+#   imageadd
+#   imagedel
+#   maptweak
+#   spellcheck (typo fixes)
+#   experiment
+#   balance
+#   admin
+#   backend
+#   security
+#   refactor
+#################################
+
+# Your name.
+author: FluffyGhost
+
+# Optional: Remove this file after generating master changelog.  Useful for PR changelogs that won't get used again.
+delete-after: True
+
+# Any changes you've made.  See valid prefix list above.
+# INDENT WITH TWO SPACES.  NOT TABS.  SPACES.
+# SCREW THIS UP AND IT WON'T WORK.
+# Also, all entries are changed into a single [] after a master changelog generation. Just remove the brackets when you add new entries.
+# Please surround your changes in  double quotes ("), as certain characters otherwise screws up compiling. The quotes will not show up in the changelog.
+changes:
+  - bugfix: "Drop references when a mecha screen gets deleted."