EdgeRelinkCancelReason = "noTarget" | "invalidConnection" | "cancelled"

Reason an edge relink gesture ended without changing the edge.

• noTarget — the endpoint was dropped on empty canvas while dangling edges are disabled, or danglingEdges.shouldKeepOnDrop returned false for the detached edge
• invalidConnection — the drop target failed validation: it was rejected by linking.validateConnection (context reason relink), or it is not a valid target at all (hidden node, hidden or missing port, port with the wrong direction)
• cancelled — the gesture was aborted (Esc key, NgDiagramService.cancelActiveInteraction, or another gesture took over the pointer), or the endpoint was dropped back on its original node and port, which changes nothing