Fix collision between AABB and a dot

[Lulu13022002]

Closes #8038 Vanilla doesn't check if the target box is empty (a dot) only if the source box is empty to then fallback to the default max distance (-2 here) but paper do. But even if the marker has an empty box, the distance must still be calculated between where the marker has been default placed (one block above) and the top of the block (where the dot will collide) which is -1