Double chaining leads to a stack overflow

[jgonggrijp]

The following expression is useless, since you'd expect the second chain call to just return a new wrapper of the same value:

_.chain([1]).chain()

but rather than behaving like a no-op, it results in a stack overflow. Credits to @reubenrybnik for pointing this out in DefinitelyTyped/DefinitelyTyped#45201 (comment). This minor pitfall might have been introduced with #1691.

I'm hesitant to give this a "bug" label as it is rather non-urgent, but technically it's a bug. Documenting in an issue ticket for reference.