Edge line

[yyuyang]

Hello, I have used your open-source library v-network-graph for the vue3 project. During initialization, if the canvas is empty and at least 2 nodes are added, I can only link two of them.
The data structure is
{ "nodes":{}, "edges":{ "edgeNaN":{"source":"xxxx","target":"xxxx"} }, "layouts":{"nodes":{}} }
I hope to receive your reply！