Forum https://wildfiregames.com/forum/topic/62172-showing-terrain-passability-in-a25-atlas
Ticket https://trac.wildfiregames.com/ticket/6374
Started https://trac.wildfiregames.com/changeset/25360
During deletion of TERRAIN_TILE_SIZE, the order of arguments Clamp was out of order
The patch fixes the problem (I didn't think for a long time, maybe the code can be made more clean)