The 515 MegaPR early downport (#7783)

Co-authored-by: Selis <selis@xynolabs.com>
Co-authored-by: Selis <sirlionfur@hotmail.de>
Co-authored-by: Kashargul <144968721+Kashargul@users.noreply.github.com>
Co-authored-by: SatinIsle <thesatinisle@gmail.com>
Co-authored-by: Heroman <alesha3000@list.ru>
Co-authored-by: Casey <a.roaming.shadow@gmail.com>
Co-authored-by: Raeschen <rycoop29@gmail.com>

code/_onclick/hud/ability_screen_objects.dm

@@ -183,6 +183,13 @@
 	if(!ability_master)	//VOREStation Edit: S H A D E K I N
 		ability_master = new /obj/screen/movable/ability_master(src)
 
+
+/mob/Destroy()
+	..()
+	if(ability_master)
+		QDEL_NULL(ability_master)
+
+
 ///////////ACTUAL ABILITIES////////////
 //This is what you click to do things//
 ///////////////////////////////////////
@@ -383,4 +390,4 @@
 	A.name = object_given.name
 	ability_objects.Add(A)
 	if(my_mob.client)
-		toggle_open(2) //forces the icons to refresh on screen
+		toggle_open(2) //forces the icons to refresh on screen