Fixing a logical error (again) in del

Dependencies

• [2] JIQOPUYH Fixing a logical error causing a panic in some very rare cases
• [3] Z33OHFPA Version bump
• [4] DEKK3RUI Fixing a bug when splitting unsized pages
• [5] W2MIZD5B Single file databases + CRC for the root pages (checking the other pages makes everything very slow)
• [6] PUOGOIJ3 Debugging, impls and version bump
• [7] L5CVF6UJ Debugging
• [8] GPP7KJSF Version bump
• [9] 7T2CCH3P Fixing a segfault (wrong offset in page_unsized::del)
• [10] 2ZRCQBXP Version bump
• [11] DASFQGOR Debugging
• [12] OP6SVMOD Resetting history
• [13] J7LJZBME Setting reverse cursor to last by default
• [14] T73WR2BX Cleaner RC increments for keys and values containing references + more comments in `del`

Change contents

• replacement in sanakirja-core/src/btree/del.rs at line 505
  [2.66]→[2.66:243](∅→∅)
  − // modified in the last step is the one on the left of

  − // the entry, move back one step before inserting the

  − // split key/value.
  [2.66]

  [2.243]
  + // modified in the last step is the one on the right

  + // of the current entry, move right one step before

  + // inserting the split key/value.
• edit in sanakirja-core/src/btree/del.rs at line 511
  [2.365]

  [2.365]
  + //

  + // We need to do this because the split key/value is

  + // inserted immediately *before* the current cursor

  + // position, which is incorrect if the split key/value

  + // comes from the right-hand side of the current

  + // cursor position.
• replacement in sanakirja-core/src/btree/del.rs at line 519
  [4.6666]→[4.6666:6718](∅→∅)
  − P::move_prev(&mut curs.cursor);
  [4.6666]

  [4.6718]
  + P::move_next(&mut curs.cursor);
• replacement in sanakirja-core/Cargo.toml at line 3
  [4.70812]→[3.0:18](∅→∅)
  − version = "1.2.6"
  [4.70812]

  [4.70847]
  + version = "1.2.7"