Bug in PersistentList - list is broken after removeAll call

[maio]

It only happens in certain situations. It can be reproduced using following test:

class PersistentListTest {
    @Test
    fun `persistent list fails`() {
        var xs = persistentListOf(
            *(1..1885).map { it }.toTypedArray()
        )

        xs = xs.removeAll(
            (1..1837).map { it }
        )

        println(xs.size)

        xs.forEach {
            print(it)
        }
    }
}

print(it.i) fails with exception

java.lang.ClassCastException: class [Ljava.lang.Object; cannot be cast to class java.lang.Number
 ([Ljava.lang.Object; and java.lang.Number are in module java.base of loader 'bootstrap')

[qurbonzoda]

Fixing commit is now in master and will part of the coming release. Thank you for your bug report!