gui: adjustment to update drawing asymmetric edge data when joining a session

daemon/core/gui/graph/manager.py

@@ -395,6 +395,7 @@ class CanvasManager:
         if token in self.edges and link.options.unidirectional:
             edge = self.edges[token]
             edge.asymmetric_link = link
+            edge.redraw()
         elif token not in self.edges:
             edge = CanvasEdge(self.app, src, dst)
             edge.complete(dst, link)

daemon/core/nodes/base.py

@@ -1055,7 +1055,7 @@ class CoreNetworkBase(NodeBase):
             unidirectional = 0
             linked_node = iface.node
             if linked_node is None:
-                # two layer-2 switches/hubs linked together via linknet()
+                # two layer-2 switches/hubs linked together
                 if not iface.othernet:
                     continue
                 linked_node = iface.othernet
@@ -1063,6 +1063,8 @@ class CoreNetworkBase(NodeBase):
                     continue
                 if iface.local_options != iface.options:
                     unidirectional = 1
+                iface_data = None
+            else:
                 iface_data = iface.get_data()
             link_data = LinkData(
                 message_type=flags,