Handle multiple nested None-delimited groups#843
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dtolnay merged 1 commit intodtolnay:masterfrom May 31, 2020
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When rust-lang/rust#72388 re-lands, we may accumulate several 'layers' of `None`-delimited groups. This commit ensures that we 'unwrap' all of the layers, allowing consumers to avoid needing to handle these cases.
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When rust-lang/rust#72388 re-lands, we may accumulate several 'layers'
of
None-delimited groups. This commit ensures that we 'unwrap' all ofthe layers, allowing consumers to avoid needing to handle these cases.