diff -r e6faeffed1d1 -r b4beff48bb7a src/documentmanager.h
--- a/src/documentmanager.h	Wed May 25 17:25:24 2022 +0300
+++ b/src/documentmanager.h	Wed May 25 17:42:02 2022 +0300
@@ -75,6 +75,7 @@
 	void collectReferences(QSet<QString> &referenced, const QString& name, const Model* model);
 	void updateDependencies(ModelInfo* model);
 	void prune();
+	Q_SLOT void modelModified();
 	bool isReferencedByAnything(const ModelId modelId) const;
 	void makePolygonCacheForModel(const ModelId modelId);
 };