It seems change inverses will need a little more work

Dependencies

• [2] NA5I4WYN Fixing the inverse of conflict resolutions
• [3] SXEYMYF7 Fixing the bad changes in history (unfortunately, by rebooting).
• [4] I52XSRUH Massive cleanup, and simplification

Change contents

• replacement in libpijul/src/apply.rs at line 764
  [3.969041]→[2.324:396](∅→∅)
  − if (e.flag & EdgeFlags::FOLDER | EdgeFlags::BLOCK).is_empty() {
  [3.969041]

  [3.969090]
  + if !e.flag.contains(EdgeFlags::FOLDER) {