2f391da2e6
Make the specialized Fuse still deal with None Fixes #85863 by removing the assumption that we'll never see a cleared iterator in the `I: FusedIterator` specialization. Now all `Fuse` methods check for the possibility that `self.iter` is `None`, and the specialization only avoids _setting_ that to `None` in `&mut self` methods. |
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| benches | ||
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| Cargo.toml | ||