Setting a tree node with id = "'/"

[edulid]

If I set the id of a treenode to "/", I get a collision. I think that this value is somewhat protected? If I change my id to be 'x' no collision occurs. But this is not documented as far as I know?
Using 6.0-p20160519.

[Isomorphic]

"/" is the default pathSeparator. The separator is configurable, so you can avoid the collision.

Note that the tree does not require IDs to lack the path separator. Only when you configure a field as the nameProperty is it required to avoid having path separators.