diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 2208684..ff166a6 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -162,3 +162,4 @@ boost_test(TYPE run SOURCES result_error_construct3.cpp)
 boost_test(TYPE run SOURCES result_emplace.cpp)
 boost_test(TYPE run SOURCES result_error_construct4.cpp)
 boost_test(TYPE run SOURCES result_value_construct4.cpp)
+boost_test(TYPE run SOURCES result_value_construct5.cpp)
diff --git a/test/Jamfile.v2 b/test/Jamfile.v2
index 84d549c..df74b5e 100644
--- a/test/Jamfile.v2
+++ b/test/Jamfile.v2
@@ -192,3 +192,4 @@ run result_error_construct3.cpp : : : $(CPP11) ;
 run result_emplace.cpp : : : $(CPP11) ;
 run result_error_construct4.cpp : : : $(CPP11) ;
 run result_value_construct4.cpp : : : $(CPP11) ;
+run result_value_construct5.cpp : : : $(CPP11) ;
diff --git a/test/result_value_construct5.cpp b/test/result_value_construct5.cpp
new file mode 100644
index 0000000..ab6cd2c
--- /dev/null
+++ b/test/result_value_construct5.cpp
@@ -0,0 +1,82 @@
+// Copyright 2023 Peter Dimov.
+// Distributed under the Boost Software License, Version 1.0.
+// https://www.boost.org/LICENSE_1_0.txt
+
+#include <boost/system/result.hpp>
+#include <boost/core/lightweight_test.hpp>
+#include <boost/core/lightweight_test_trait.hpp>
+#include <utility>
+#include <type_traits>
+
+using namespace boost::system;
+
+// Tricky mixed construction cases
+// https://github.com/boostorg/system/issues/104
+// https://brevzin.github.io//c++/2023/01/18/optional-construction/
+
+template<class R1, class R2> void test()
+{
+    {
+        R1 r1( make_error_code( errc::invalid_argument ) );
+        R2 r2( r1 );
+
+        BOOST_TEST( !r2.has_value() );
+    }
+
+    {
+        R1 r1( 0 );
+        R2 r2( r1 );
+
+        BOOST_TEST( r2.has_value() ) && BOOST_TEST_EQ( r2.value(), false );
+    }
+
+    {
+        R1 r1( 1 );
+        R2 r2( r1 );
+
+        BOOST_TEST( r2.has_value() ) && BOOST_TEST_EQ( r2.value(), true );
+    }
+
+    {
+        R1 r1( make_error_code( errc::invalid_argument ) );
+        R2 r2( std::move( r1 ) );
+
+        BOOST_TEST( !r2.has_value() );
+    }
+
+    {
+        R1 r1( 0 );
+        R2 r2( std::move( r1 ) );
+
+        BOOST_TEST( r2.has_value() ) && BOOST_TEST_EQ( r2.value(), false );
+    }
+
+    {
+        R1 r1( 1 );
+        R2 r2( std::move( r1 ) );
+
+        BOOST_TEST( r2.has_value() ) && BOOST_TEST_EQ( r2.value(), true );
+    }
+}
+
+struct X
+{
+};
+
+int main()
+{
+    test< result<int>, result<bool> >();
+    test< result<int> const, result<bool> >();
+
+    BOOST_TEST_TRAIT_FALSE((std::is_constructible<result<bool>, result<X>&>));
+    BOOST_TEST_TRAIT_FALSE((std::is_constructible<result<bool>, result<X> const&>));
+    BOOST_TEST_TRAIT_FALSE((std::is_constructible<result<bool>, result<X>&&>));
+    BOOST_TEST_TRAIT_FALSE((std::is_constructible<result<bool>, result<X> const&&>));
+
+    BOOST_TEST_TRAIT_FALSE((std::is_constructible<result<bool const>, result<X>&>));
+    BOOST_TEST_TRAIT_FALSE((std::is_constructible<result<bool const>, result<X> const&>));
+    BOOST_TEST_TRAIT_FALSE((std::is_constructible<result<bool const>, result<X>&&>));
+    BOOST_TEST_TRAIT_FALSE((std::is_constructible<result<bool const>, result<X> const&&>));
+
+    return boost::report_errors();
+}