lib/hx.rb in hx-0.22.0 vs lib/hx.rb in hx-0.23.0

@@ -584,10 +584,10 @@
       to_process = Set.new(source_names)
       until to_process.empty?
         need_updating = Set.new
         for name in to_process
           depth = source_depths[name] + 1
-          if depth >= source_names.length
+          if depth > source_names.length
             raise "cycle in source graph involving #{name}"
           end
           for input_name in source_dependencies[name]
             if depth > source_depths[input_name]
               source_depths[input_name] = depth