Matches https://github.com/ilyagr/pijul-clone as of now, might become out of sync

Fixing an unwrap on bad patches in unrecord (these patches cannot even be produced outside of bugs)

Created by  pmeunier  on February 27, 2021
TVHECUPYIPRIX5C7UBLM55KU5Z7FS7SMPNFAQQWIC4MGEJBCZXZQC
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