[mcs] Explicit user conversion from nullable types does not have to lift the result. Fixes #17469

1 files changed, 33 insertions, 0 deletions

diff --git a/mcs/tests/gtest-603.cs b/mcs/tests/gtest-603.cs
new file mode 100644
index 00000000000..dcaf7a25198
--- /dev/null
+++ b/mcs/tests/gtest-603.cs
@@ -0,0 +1,33 @@
+using System;
+
+public class A<T>
+{
+	T value;
+
+	public A (T value)
+	{
+		this.value = value;
+	}
+
+	public static explicit operator T (A<T> source)
+	{
+		return source.value;
+	}
+}
+
+public class Test
+{
+	public static int Main ()
+	{
+		var source = new A<int?> (3);
+		if (N ((int)source) != 3)
+			return 1;
+
+		return 0;
+	}
+
+	static int N (int value)
+	{
+		return value;
+	}
+}
\ No newline at end of file