Deleting connected node leaves edges in edge list #3
Description
Hi,
Great library - I'm enjoying playing with it.
Say you add some nodes - and then connect them. If you subsequently delete the node (i.e select it in the interface and then hit the delete key) the edges stay in the edge list. The lines disappear from the interface but stay in the canvas.line_list.
If you manually delete them first then you can do it, but if you remove the node they are connected to the edges logically persist but are not displayed.