Descriptive Problem Summary:
Big icons don't use the correct layering order in certain cases with SIDE_MAP.
Numbered Steps to Reproduce Problem:
1) Create a wide icon in a SIDE_MAP project.
2) Put a mob in a tile east of the icon, where it would normally be overlaid on top.
3) Change client.dir
In the example, the mob would always appear on top of the wide icon, except when client.dir placed the mob visually further north.
The mob sometimes is covered by the icon in situations where it's on the same "nearness" level.