Fixes possession funtime (#37737)

* Fixes possession funtime

* This should probably be generic backend mob list but i can't think of anything else that would need it.

code/modules/admin/verbs/adminjump.dm

@@ -95,7 +95,7 @@
 
 	SSblackbox.record_feedback("tally", "admin_verb", 1, "Jump To Key") //If you are copy-pasting this, ensure the 2nd parameter is unique to the new proc!
 
-/client/proc/Getmob(mob/M in GLOB.mob_list)
+/client/proc/Getmob(mob/M in GLOB.mob_list - GLOB.dummy_mob_list)
 	set category = "Admin"
 	set name = "Get Mob"
 	set desc = "Mob to teleport"

code/modules/mob/dead/observer/observer.dm

@@ -592,6 +592,8 @@ This is the proc mobs get to turn into a ghost. Forked from ghostize due to comp
 
 	var/list/possessible = list()
 	for(var/mob/living/L in GLOB.alive_mob_list)
+		if(istype(L,/mob/living/carbon/human/dummy) || !get_turf(L)) //Haha no.
+			continue
 		if(!(L in GLOB.player_list) && !L.mind)
 			possessible += L
 

code/modules/mob/living/carbon/human/dummy.dm

@@ -19,6 +19,7 @@ INITIALIZE_IMMEDIATE(/mob/living/carbon/human/dummy)
 
 //Inefficient pooling/caching way.
 GLOBAL_LIST_EMPTY(human_dummy_list)
+GLOBAL_LIST_EMPTY(dummy_mob_list)
 
 /proc/generate_or_wait_for_human_dummy(slotkey)
 	if(!slotkey)
@@ -31,6 +32,7 @@ GLOBAL_LIST_EMPTY(human_dummy_list)
 	if(QDELETED(D))
 		D = new
 		GLOB.human_dummy_list[slotkey] = D
+		GLOB.dummy_mob_list += D
 	D.in_use = TRUE
 	return D