FIX: minor (#934)

Co-authored-by: ring630 <@gmail.com>

Author: hui-zhou-a

src/pyedb/dotnet/edb_core/layout_validation.py

@@ -272,7 +272,7 @@ def fix_self_intersections(self, net_list=None):
         bool
         """
         if not net_list:
-            net_list = list(self._pedb.nets.keys())
+            net_list = list(self._pedb.nets.nets.keys())
         elif isinstance(net_list, str):
             net_list = [net_list]
         new_prims = []

tests/legacy/system/test_edb.py

@@ -289,6 +289,7 @@ def test_create_custom_cutout_1(self):
         assert isinstance(edbapp.layout_validation.disjoint_nets("GND", keep_only_main_net=True), list)
         assert isinstance(edbapp.layout_validation.disjoint_nets("GND", clean_disjoints_less_than=0.005), list)
         assert edbapp.layout_validation.fix_self_intersections("PGND")
+        assert edbapp.layout_validation.fix_self_intersections()
 
         edbapp.close()