Corrects return values for the Topic procs of several computers and some other machines as well.

code/modules/mining/machine_processing.dm

@@ -67,7 +67,7 @@
 
 /obj/machinery/mineral/processing_unit_console/Topic(href, href_list)
 	if(..())
-		return
+		return 1
 	usr.set_machine(src)
 	src.add_fingerprint(usr)
 

code/modules/mining/machine_stacking.dm

@@ -43,7 +43,7 @@
 
 /obj/machinery/mineral/stacking_unit_console/Topic(href, href_list)
 	if(..())
-		return
+		return 1
 
 	if(href_list["change_stack"])
 		var/choice = input("What would you like to set the stack amount to?") as null|anything in list(1,5,10,20,50)

code/modules/mining/mint.dm

@@ -116,7 +116,7 @@
 
 /obj/machinery/mineral/mint/Topic(href, href_list)
 	if(..())
-		return
+		return 1
 	usr.set_machine(src)
 	src.add_fingerprint(usr)
 	if(processing==1)

code/modules/mining/money_bag.dm

@@ -62,7 +62,7 @@
 
 /obj/item/weapon/moneybag/Topic(href, href_list)
 	if(..())
-		return
+		return 1
 	usr.set_machine(src)
 	src.add_fingerprint(usr)
 	if(href_list["remove"])