Proper old metadata when recording

Dependencies

• [2] YN63NUZO Sanakirja 1.0
• [3] I52XSRUH Massive cleanup, and simplification
• [4] VO5OQW4W Removing anyhow in libpijul
• [5] GHO6DWPI Refactoring iterators
• [6] SXEYMYF7 Fixing the bad changes in history (unfortunately, by rebooting).
• [7] O4DNWMPD Cleaunp and proofreading of libpijul::record
• [8] CCLLB7OI Upgrading to Sanakirja 0.15 + version bump
• [9] KDF6FJRV bigger clippy refactors
• [10] 3AMEP2Y5 More convenient interface for channels

Change contents

• edit in libpijul/src/record.rs at line 445
  [3.502201]→[3.502201:502254](∅→∅)
  − self.former_parents[0].metadata,
• edit in libpijul/src/record.rs at line 680
  [3.507872]→[3.507872:507905](∅→∅)
  − old_meta: InodeMetadata,
• replacement in libpijul/src/record.rs at line 684
  [3.12528]→[3.507942:508005](∅→∅),[3.36029]→[3.507942:508005](∅→∅),[3.507942]→[3.507942:508005](∅→∅)
  − debug!("record_moved_file {:?} {:?}", item, old_meta);
  [3.36029]

  [2.51052]
  + debug!("record_moved_file {:?}", item);
• edit in libpijul/src/record.rs at line 698
  [3.508680]→[3.508680:508702](∅→∅)
  − old_meta,
• edit in libpijul/src/record.rs at line 764
  [3.510978]→[3.510978:511007](∅→∅)
  − old_meta: InodeMetadata,
• replacement in libpijul/src/record.rs at line 826
  [3.512976]→[3.512976:513013](∅→∅)
  − "parent_dest {:?} {:?}",
  [3.512976]

  [3.513013]
  + "parent_dest {:?} {:?} {:?}",
• edit in libpijul/src/record.rs at line 828
  [3.513038]

  [3.513038]
  + &previous_name[..2],
• replacement in libpijul/src/record.rs at line 831
  [3.513102]→[3.513102:513174](∅→∅)
  − debug!("new_meta = {:?}, old_meta = {:?}", new_meta, old_meta);
  [3.513102]

  [3.513174]
  + let (parent_meta, parent_name) = previous_name.split_at(2);

  + let parent_meta = InodeMetadata::from_basename(parent_meta);

  + debug!("new_meta = {:?}, parent_meta = {:?}", new_meta, parent_meta);
• replacement in libpijul/src/record.rs at line 835
  [3.513201]→[3.21:116](∅→∅)
  − (previous_name[2..] != name[2..]) || (new_meta != old_meta && cfg!(not(windows)));
  [3.513201]

  [3.34801]
  + (parent_name != &name[2..]) || (new_meta != parent_meta && cfg!(not(windows)));