Fix datum components (#15788)

code/datums/components/_component.dm

@@ -297,12 +297,12 @@
   */
 /datum/component/proc/_GetInverseTypeList(our_type = type)
 	//we can do this one simple trick
+	. = list(our_type)
 	var/current_type = parent_type
-	. = list(our_type, current_type)
 	//and since most components are root level + 1, this won't even have to run
 	while (current_type != /datum/component)
-		current_type = type2parent(current_type)
 		. += current_type
+		current_type = type2parent(current_type)
 
 /**
   * Internal proc to handle most all of the signaling procedure