fix: recursive calls and return

src/edmonds.cpp

@@ -81,7 +81,8 @@ void maximum_matching_from_initial_matching(Graph & graph)
                }
                // Note that since this is tail-recursion, this will not generate
                // new stack frames in OPT mode
-               maximum_matching(graph);
+               maximum_matching_from_initial_matching(graph);
+               return;
             }
             else
             {
@@ -160,7 +161,8 @@ void find_greedy_matching(Graph & graph)
 }
 
 Graph maximum_matching(Graph & graph) {
-   find_greedy_matching(graph);
+   //find_greedy_matching(graph);
+   graph.reset_matching();
    maximum_matching_from_initial_matching(graph);
 
    ED::Graph matching = ED::Graph(graph.num_nodes());