fix wrong reference link in changelog

Change-Id: I55cf7c6f128cd618cb261b38929bf962586b59e8

diff --git a/doc/build/changelog/unreleased_21/12437.rst b/doc/build/changelog/unreleased_21/12437.rst
index d3aa2092a8804bebf6f46a1c17c968f46562ca03..30db82f0744fd62535557d51bc73c0de554cbc92 100644 (file)
--- a/doc/build/changelog/unreleased_21/12437.rst
+++ b/doc/build/changelog/unreleased_21/12437.rst
@@ -6,6 +6,6 @@
     version 1.3, has been removed.   The sole use case for "non primary"
     mappers was that of using :func:`_orm.relationship` to link to a mapped
     class against an alternative selectable; this use case is now suited by the
-    :doc:`relationship_aliased_class` feature.
+    :ref:`relationship_aliased_class` feature.