Do not move source if destination is wrong

Dependencies

• [2] Y7YAFMFF Fix path prefix striping on Windows.
• [3] SXEYMYF7 Fixing the bad changes in history (unfortunately, by rebooting).
• [4] YN63NUZO Sanakirja 1.0
• [5] JL4WKA5P Implement the Sanakirja concurrency model in a cross-process way

Change contents

• edit in pijul/src/commands/file_operations.rs at line 48
  [3.170173]→[3.170173:170279](∅→∅)
  − std::fs::rename(&source, &target)?;

  − let target = std::fs::canonicalize(&target)?;
• replacement in pijul/src/commands/file_operations.rs at line 49
  [3.170280]→[2.417:535](∅→∅),[2.535]→[3.170398:170538](∅→∅),[3.170398]→[3.170398:170538](∅→∅)
  − let source = source.strip_prefix(&repo_path)?;

  − let target = target.strip_prefix(&repo_path)?;

  − debug!("moving {:?} -> {:?}", source, target);

  − txn.move_file(&source.to_string_lossy(), &target.to_string_lossy())?
  [3.170280]

  [3.170538]
  + let target = std::fs::canonicalize(&target)?;

  + {

  + let source = source.strip_prefix(&repo_path)?;

  + let target = target.strip_prefix(&repo_path)?;

  + debug!("moving {:?} -> {:?}", source, target);

  + txn.move_file(&source.to_string_lossy(), &target.to_string_lossy())?;

  + }

  + std::fs::rename(&source, &target)?;