Merge pull request #9983 from Ghommie/Ghommie-cit408

refactoring altclick interaction to allow parent calls without forcing the turf contents stat menu open.

code/modules/reagents/chemistry/machinery/chem_dispenser.dm

@@ -442,10 +442,11 @@
 	return final_list
 
 /obj/machinery/chem_dispenser/AltClick(mob/living/user)
+	. = ..()
 	if(!istype(user) || !user.canUseTopic(src, BE_CLOSE, FALSE, NO_TK))
 		return
 	replace_beaker(user)
-	return
+	return TRUE
 
 /obj/machinery/chem_dispenser/drinks/Initialize()
 	. = ..()

code/modules/reagents/chemistry/machinery/chem_heater.dm

@@ -29,10 +29,11 @@
 		icon_state = "mixer0b"
 
 /obj/machinery/chem_heater/AltClick(mob/living/user)
+	. = ..()
 	if(!istype(user) || !user.canUseTopic(src, BE_CLOSE, FALSE, NO_TK))
 		return
 	replace_beaker(user)
-	return
+	return TRUE
 
 /obj/machinery/chem_heater/proc/replace_beaker(mob/living/user, obj/item/reagent_containers/new_beaker)
 	if(beaker)

code/modules/reagents/chemistry/machinery/pandemic.dm

@@ -237,10 +237,11 @@
 		return ..()
 
 /obj/machinery/computer/pandemic/AltClick(mob/living/user)
+	. = ..()
 	if(!istype(user) || !user.canUseTopic(src, BE_CLOSE, FALSE, NO_TK))
 		return
 	replace_beaker(user)
-	return
+	return TRUE
 
 /obj/machinery/computer/pandemic/proc/replace_beaker(mob/living/user, obj/item/reagent_containers/new_beaker)
 	if(beaker)