Why is it called #keysSortedSafely in Dictionary?

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Why is it called #keysSortedSafely in Dictionary?

Tim Mackinnon
I’m curious why on Dictionary there is #keys and #keysSortedSafely ? Why isn’t it just #keysSorted - do we normally provided a keysSortedDangerously?

Looking deeper, it seems to duplicate the keys method, so I’m wondering if this is ripe for some rework.

Tim