To clarify, those wetlands etc. are being treated as holes in the nature_reserve (wrong), as evidenced by their being drawn with a nature_reserve dashed border and without the ducky nature_reserve fill pattern. This is in addition to the wetlands etc. also being treated as holes in the wood (correct). I say wrong/correct because they're only marked as inners of the wood multipolygon, not of the nature_reserve, though both share the same outer way.
I'm not familiar with osmarender, but the rendering seems correct on all the slippy renderers I have tried (Mapnik, OCM, MapQuest, Humanitarian, ...), and JOSM had no complaints when validating. So I *think* it's a legal construct. (EDIT: On closer inspection, it seems OCM and Humanitarian get it "wrong", but it's extremely hard to notice, 1-pixel borders. Mapnik does it "right", because wrong would be very noticeable.) Maybe I should just duplicate the outer way...
Anyway, thanks for the quick response. I doubt it's a theme bug; I simply mentioned it here for lack of knowing where to direct a bug report, and in any case, it's probably a minor one. Cheers.
I'm not familiar with osmarender, but the rendering seems correct on all the slippy renderers I have tried (Mapnik, OCM, MapQuest, Humanitarian, ...), and JOSM had no complaints when validating. So I *think* it's a legal construct. (EDIT: On closer inspection, it seems OCM and Humanitarian get it "wrong", but it's extremely hard to notice, 1-pixel borders. Mapnik does it "right", because wrong would be very noticeable.) Maybe I should just duplicate the outer way...
Anyway, thanks for the quick response. I doubt it's a theme bug; I simply mentioned it here for lack of knowing where to direct a bug report, and in any case, it's probably a minor one. Cheers.