Why does SortedSet use reference equality when it removes its element?

[bglgwyng]

I've been using a tuple(Array in JS) as a key with SortedSet.remove.
I found that SortedSet.remove doesn't remove its element when it's not a primitive type.

So I investigated the implementation and found that removeInternal checks the reference equality before actually removing the element.
https://github.com/rimbu-org/rimbu/blob/main/packages/sorted/src/set-custom/implementation/immutable.mts#L435

Even in the case that my custom compare function returns 0, the element won't be deleted.
Just commenting that line out made remove operate as I expected.

Is this intended behavior? Or am I missing something else?

[vitoke]

I'm pretty sure you found a genuine bug there! It should not be using reference equality, but the context.comp instance.