Fix Tileset/tilemap issues related to my adding of one-way collisions to them
Created by: bojidar-bg
Also, turn shape_offset
into shape_transform
, since otherwise you can have only down-pointing one-way collisions.
Fix bad return type in CollisionObject2D, Shape -> Shape2D. Was causing unintended null when casting. (#9409 (closed)) Fix a misplaced ++ operator. (#9370) Fix merging with exiting tileset duplicating shapes. (#9370)