Implementation helper for expandSync.
If the node does not exist yet, the expand is recorded as pending and applied when the node is added.
Fires the onExpand callback to add connections to the node. The builder only marks the relation's
connectors dirty; they run, and their output reaches the graph, on its next flush.
Expanding a node that is already expanded for the same relation is a no-op.
Implementation helper for expandSync. If the node does not exist yet, the expand is recorded as pending and applied when the node is added.
Fires the
onExpandcallback to add connections to the node. The builder only marks the relation's connectors dirty; they run, and their output reaches the graph, on its next flush.Expanding a node that is already expanded for the same relation is a no-op.