Fixing an optimisation in reset where files not modified since the last output are not output again

Dependencies

• [2] G6S6PWZE Do not touch the channel if this is a partial record
• [3] CCLLB7OI Upgrading to Sanakirja 0.15 + version bump
• [4] VNBLGT6G Do not output unmodified files when resetting (fix)
• [*] SXEYMYF7 Fixing the bad changes in history (unfortunately, by rebooting).

Change contents

• replacement in libpijul/src/output/output.rs at line 348
  [3.1319]→[3.1319:1371](∅→∅),[3.1371]→[2.1428:1468](∅→∅),[2.1468]→[3.1410:1431](∅→∅),[3.1410]→[3.1410:1431](∅→∅),[3.1431]→[2.1469:1499](∅→∅),[2.1499]→[3.1460:1474](∅→∅),[3.1460]→[3.1460:1474](∅→∅)
  − if let Ok(d) = last.duration_since(m) {

  − return d.as_secs() > 0;

  − } else {

  − return false;

  − }
  [3.1319]

  [3.1474]
  + return last.duration_since(m).is_ok()