If volunteer has no hours for new year and is a member, this assings 0 to remaining.

* otherwise spinner spins infinitely, and membership discount is not applied.

js/transaction.js

@@ -1098,6 +1098,10 @@ $(function() {
 						vhr = 0;
 					}					
 					
+					if (obj.current_year_volunteer_hours === null) {
+						remaining = 0;
+					}					
+					
 					var title = obj.normal_full_name + "\r\n" +
 											obj.email + "\r\n" +
 											obj.phone + "\r\n" +