Removing an element from a red-black tree sometimes modifies the remaining key-value pairs

Using @collectable/red-black-tree@3.7.0 with Node 8.1.3:

const RBT = require("@collectable/red-black-tree");
let tree = RBT.empty();
tree = RBT.set(1, 'one', tree);
tree = RBT.set(3, 'three', tree);
tree = RBT.set(2, 'two', tree);
tree = RBT.remove(2, tree);

console.log(RBT.get(3, tree));

Expected output:

three

Actual output:

two

[axefrog]

Ok it’s all in, with new packages published. Readme files and so forth have not been updated at this stage. Let me know if you have any questions, and feel free to revise your pull requests after updating your code.

[axefrog]

That would work, but it’d be less efficient because you’d be performing two iterations instead of one; first to iterate and find the keys to remove, and second to iterate and perform the removals.