From 47786865ef4ae3874ba6c26d91bdbbaedc64c6c3 Mon Sep 17 00:00:00 2001
From: Johannes Lorenz <j.git@lorenz-ho.me>
Date: Thu, 2 Jan 2020 19:49:02 +0100
Subject: [PATCH] Document strange bug

---
 tests/src/core/AutomatableModelTest.cpp | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/tests/src/core/AutomatableModelTest.cpp b/tests/src/core/AutomatableModelTest.cpp
index 5b1363f6c..553656f8d 100644
--- a/tests/src/core/AutomatableModelTest.cpp
+++ b/tests/src/core/AutomatableModelTest.cpp
@@ -61,6 +61,20 @@ private slots: // tests
 		AutomatableModel::linkModels(&m1, &m2);
 		QVERIFY(!m1Changed); // it's already linked
 		QVERIFY(!m2Changed);
+
+		resetChanged();
+		BoolModel m3(false);
+		m1.setValue(1.f);
+		m2.setValue(1.f);
+		AutomatableModel::linkModels(&m1, &m2);
+		QVERIFY(m1.value());
+		QVERIFY(m2.value());
+		QVERIFY(!m3.value());
+		AutomatableModel::linkModels(&m2, &m3); // drag m3, drop on m2
+		// m2 should take m3's (0) value
+		// due to a bug(?), this does not happen
+		QVERIFY(m2.value());
+		QVERIFY(!m3.value());
 	}
 } AutomatableModelTests;