PeristentHashMapBuilder.putAll() with another persistent hash map can produce incorrect results. #114
Description
Consider the following code:
val p = persistentHashMapOf<Int, Int>(99 to 1)
val e = Array(101) { it }.map { it to it }
val c = persistentHashMapOf(*e.toTypedArray())
val n = p.builder().apply { putAll(c) }.build()
println("n[99] = ${n[99]}")
Expected
n[99] = 99
Received
n[99] = 1
Changing the putAll call above to putAll(e) produces the expected result.
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