Error when deactivating the selection of links in internal view mode

[afourmy]

In the internal view of a node (shelf/card inside a network device), deactivating the selection of link triggers the following error:

Traceback (most recent call last):
File "C:\Users\minto\Desktop\pyNMS\pyNMS\main_menus\selection_panel.py", line 33, in
checkbox.clicked.connect(lambda _, m=mode: self.change_selection(m))
File "C:\Users\minto\Desktop\pyNMS\pyNMS\miscellaneous\decorators.py", line 38, in wrapper
function(self, *args, **kwargs)
File "C:\Users\minto\Desktop\pyNMS\pyNMS\main_menus\selection_panel.py", line 44, in change_selection
}mode:
File "C:\Users\minto\Desktop\pyNMS\pyNMS\networks\graph.py", line 200, in all_links
yield from self.pn[type].values()
KeyError: 'plink'
Traceback (most recent call last):
File "C:\Users\minto\Desktop\pyNMS\pyNMS\main_menus\selection_panel.py", line 33, in
checkbox.clicked.connect(lambda _, m=mode: self.change_selection(m))
File "C:\Users\minto\Desktop\pyNMS\pyNMS\miscellaneous\decorators.py", line 38, in wrapper
function(self, *args, **kwargs)
File "C:\Users\minto\Desktop\pyNMS\pyNMS\main_menus\selection_panel.py", line 44, in change_selection
}mode:
File "C:\Users\minto\Desktop\pyNMS\pyNMS\networks\graph.py", line 200, in all_links
yield from self.pn[type].values()
KeyError: 'plink'