diff -r daa8770b9d26 -r d862721d19a3 src/polygoncache.cpp
--- a/src/polygoncache.cpp	Wed Jun 29 16:21:44 2022 +0300
+++ b/src/polygoncache.cpp	Wed Jun 29 16:33:49 2022 +0300
@@ -104,7 +104,7 @@
 	for (std::size_t i = 0; i < model->size(); i += 1)
 	{
 		const ModelElement& element = (*model)[i];
-		const ModelId id = model->idAt(i);
+		const ElementId id = model->idAt(i);
 		collectPolygons(element, winding, context,
 			[&result, winding, id](const PolygonElement& poly){
 				result.push_back({poly, id});