From 99e74533c3c45c90238c7c07ee4439aefb4eb888 Mon Sep 17 00:00:00 2001
From: Thomas Krijnen <t.krijnen@gmail.com>
Date: Sat, 17 Jul 2021 10:20:50 +0200
Subject: [PATCH] #1567 Clear inverse cache map after entity insertion

---
 src/ifcparse/IfcParse.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/ifcparse/IfcParse.cpp b/src/ifcparse/IfcParse.cpp
index b59ac0c887..62ad5a3f00 100644
--- a/src/ifcparse/IfcParse.cpp
+++ b/src/ifcparse/IfcParse.cpp
@@ -1792,6 +1792,10 @@ IfcUtil::IfcBaseClass* IfcFile::addEntity(IfcUtil::IfcBaseClass* entity, int id)
 		build_inverses_(new_entity);
 	}
 
+	// @todo the id isn't actually used here, but instead
+	// clears the entire inverse cache map.
+	mark_entity_as_modified(0);
+
 	return new_entity;
 }