Bugfix: obs field selector was showing duplicates for recently used fields.
Bugfix: obs field selector was showing duplicates for recently used fields.

HotFusionMan/inaturalist,loarie/inaturalist,HotFusionMan/inaturalist,lucas-ez/inaturalist,HotFusionMan/inaturalist,inaturalist/inaturalist,HotFusionMan/inaturalist,loarie/inaturalist,loarie/inaturalist,lucas-ez/inaturalist,pleary/inaturalist,calonso-conabio/inaturalist,calonso-conabio/inaturalist,lucas-ez/inaturalist,calonso-conabio/inaturalist,inaturalist/inaturalist,lucas-ez/inaturalist,loarie/inaturalist,inaturalist/inaturalist,pleary/inaturalist,alexshepard/inaturalist,pleary/inaturalist,inaturalist/inaturalist,loarie/inaturalist,alexshepard/inaturalist,calonso-conabio/inaturalist,calonso-conabio/inaturalist,lucas-ez/inaturalist,alexshepard/inaturalist,HotFusionMan/inaturalist,inaturalist/inaturalist,alexshepard/inaturalist,pleary/inaturalist,pleary/inaturalist,alexshepard/inaturalist