Solver: Mage: Fix ST file name export.

src/Solver/Mage.py

@@ -148,9 +148,7 @@ class Mage(CommandLineSolver):
         )
 
         for edge in edges:
-            name = edge.name.replace(" ", "_")
+            name = f"Reach_{edge.id}"
-            if edge._name == "":
-                name = f"Reach_{edge.id}"
 
             with mage_file_open(
                     os.path.join(repertory, "net", f"{name}.ST"),