1-member multipolygons

After simplifying ~98% of all 1-member multipolygons in the Netherlands to closed ways (largest changeset for reference), I am now proposing to do something similar on a global scale. My idea is to start simple with multipolygons with only type=multipolygon and one other tag. I have developed a workflow to make this change for all objects with the same tags at once.

Multipolygons of which the ways also have tags will either be verified and adjusted in the QA phase before I make any big changes or they will be completely omitted from the edit. There won’t be any loss of data, just a large scale replacement of 1-member MPs by closed ways.

Let me know what you think about this idea and if you want an explanation of my workflow.

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Ce sujet de discussion accompagne la publication sur https://community.openstreetmap.org/t/1-member-multipolygons/101507