Map rendering error in Tasmania

🚧 THIS IS A TICKET MIGRATED FROM UPVOTY. The original ticket and comments will be available for a limited time over at:
https://abrp.upvoty.com/b/report-a-bug/map-rendering-error-in-tasmania/
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On map at -42.0799,146.0989 there is a large polygon that is rendering blue, as a lake. This issue doesn't occur on the original OpenStreetMap source. I've queried the OSM data in case there are any enclosing areas which ABRP may be misinterpreting, and there aren't any of this shape.

See: https://i.imgur.com/DyLn3pb.png for a comparison.