diff --git a/src/cmd/compile/internal/types2/testdata/fixedbugs/issue50729.go b/src/cmd/compile/internal/types2/testdata/fixedbugs/issue50729.go
new file mode 100644
index 0000000000..fe19fdfa68
--- /dev/null
+++ b/src/cmd/compile/internal/types2/testdata/fixedbugs/issue50729.go
@@ -0,0 +1,19 @@
+// Copyright 2022 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package p
+
+// version 1
+var x1 T1[B1]
+
+type T1[_ any] struct{}
+type A1 T1[B1]
+type B1 = T1[A1]
+
+// version 2
+type T2[_ any] struct{}
+type A2 T2[B2]
+type B2 = T2[A2]
+
+var x2 T2[B2]
diff --git a/src/go/types/testdata/fixedbugs/issue50729.go b/src/go/types/testdata/fixedbugs/issue50729.go
new file mode 100644
index 0000000000..fe19fdfa68
--- /dev/null
+++ b/src/go/types/testdata/fixedbugs/issue50729.go
@@ -0,0 +1,19 @@
+// Copyright 2022 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package p
+
+// version 1
+var x1 T1[B1]
+
+type T1[_ any] struct{}
+type A1 T1[B1]
+type B1 = T1[A1]
+
+// version 2
+type T2[_ any] struct{}
+type A2 T2[B2]
+type B2 = T2[A2]
+
+var x2 T2[B2]