Prevent deletion of edges during node deletion

[MSB89]

I want to prevent the deletion of specific nodes, I can do this in onNodesChange with a check on change.type === 'remove' and then apply my own logic to determine if the node should or shouldn't be deleted.

The problem I'm having is that onEdgesChange is firing before onNodesChange. I want to prevent the edges from being deleted if they are part of the node deletion process. I can't simply check for change.type === 'remove' etc because I want to be able to individually delete the edges, I only want to prevent the deletion during the node deletion process - if that node can't be deleted. I can't seem to work round the onEdgesChange firing first.

[bcakmakoglu]

the removeNodes action allows you to specify that "orphaned" edges should not be removed (it will cause a warning though because edges need a source and a target node).

removeNodes(nodesOrNode, false)