GH-87115
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Validate extension JSON: Error: Field 'classes/TileMap/methods/get_collision_visibility_mode': is_const changed value in new API, from false to true.
Validate extension JSON: Error: Field 'classes/TileMap/methods/get_navigation_visibility_mode': is_const changed value in new API, from false to true.

Two TileMap getters were made const. No adjustments should be necessary.
