API question concerning addLink

Hi !
The `addLink` function creates nodes if they do not exist. The data parameter of this function attaches ... data to the link. But what about created nodes ? They are created without data. Why not having created a function addLink with 3 data: one for the link, one for the "from" node and the last for the "to" node. I think you create Node with data before or after adding links but this is error prone in the case we forget some nodes.

Thx !

Start at the addLink API and trace how missing "from" and "to" nodes are created. Compare the existing link data parameter with the behavior of these created nodes. Done means deciding whether separate data for both created nodes should be supported and documenting or implementing the agreed API behavior with suitable coverage.

Written by the indexing model from the issue text.