L Lllvvuu 585549625d fix(marktree): off-by-one error in marktree_move ...

If you would insert element X at position j, then if you are moving that
same element X from position i < j, you should move it to position j -
1, because you are losing an element.

This error caused a gap to be left in the array, so that it looked like
[x, null, y] instead of [x, y], where len = 2. This triggered #25147.

Fixes: #25147

2023-09-16 01:12:15 -07:00

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